Home / 814,164,729.72-1,120,710,778.39-709,562,969.16

Finding the Fourth Proportional to 814,164,729.72, 1,120,710,778.39 and 709,562,969.16

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Solution

The fourth proportional to 814,164,729.72, 1,120,710,778.39 and 709,562,969.16 is: 976,724,781.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,164,729.72 : 1,120,710,778.39 = 709,562,969.16 : x
  2. Step 2: Convert to fraction form
    814,164,729.72/1,120,710,778.39 = 709,562,969.16/x
  3. Step 3: Cross multiply
    814,164,729.72x = 1,120,710,778.39 × 709,562,969.16
  4. Step 4: Simplify right side
    814,164,729.72x = 795,214,867,476,698,496
  5. Step 5: Solve for x
    x = 795,214,867,476,698,496/814,164,729.72
  6. Step 6: Final answer
    x = 976,724,781.18

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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.