Home / 1,040,145,807.20-1,435,400,867.58-570,237,038.78

Finding the Fourth Proportional to 1,040,145,807.20, 1,435,400,867.58 and 570,237,038.78

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Solution

The fourth proportional to 1,040,145,807.20, 1,435,400,867.58 and 570,237,038.78 is: 786,926,923.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,145,807.20 : 1,435,400,867.58 = 570,237,038.78 : x
  2. Step 2: Convert to fraction form
    1,040,145,807.20/1,435,400,867.58 = 570,237,038.78/x
  3. Step 3: Cross multiply
    1,040,145,807.20x = 1,435,400,867.58 × 570,237,038.78
  4. Step 4: Simplify right side
    1,040,145,807.20x = 818,518,740,191,062,016
  5. Step 5: Solve for x
    x = 818,518,740,191,062,016/1,040,145,807.20
  6. Step 6: Final answer
    x = 786,926,923.63

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Double scale
Find fourth proportional to 1,040,145,808.20, 1,435,400,868.96 and 570,237,039.78
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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.