Home / 1,040,615,986.76-1,436,140,867.80-570,808,109.72

Finding the Fourth Proportional to 1,040,615,986.76, 1,436,140,867.80 and 570,808,109.72

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Solution

The fourth proportional to 1,040,615,986.76, 1,436,140,867.80 and 570,808,109.72 is: 787,765,001.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,615,986.76 : 1,436,140,867.80 = 570,808,109.72 : x
  2. Step 2: Convert to fraction form
    1,040,615,986.76/1,436,140,867.80 = 570,808,109.72/x
  3. Step 3: Cross multiply
    1,040,615,986.76x = 1,436,140,867.80 × 570,808,109.72
  4. Step 4: Simplify right side
    1,040,615,986.76x = 819,760,854,040,558,464
  5. Step 5: Solve for x
    x = 819,760,854,040,558,464/1,040,615,986.76
  6. Step 6: Final answer
    x = 787,765,001.18

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Half scale
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Double scale
Find fourth proportional to 1,040,615,987.76, 1,436,140,869.18 and 570,808,110.72
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.