Home / 781,330,132.16-1,078,207,684.47-442,231,327.10

Finding the Fourth Proportional to 781,330,132.16, 1,078,207,684.47 and 442,231,327.10

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Solution

The fourth proportional to 781,330,132.16, 1,078,207,684.47 and 442,231,327.10 is: 610,263,441.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,330,132.16 : 1,078,207,684.47 = 442,231,327.10 : x
  2. Step 2: Convert to fraction form
    781,330,132.16/1,078,207,684.47 = 442,231,327.10/x
  3. Step 3: Cross multiply
    781,330,132.16x = 1,078,207,684.47 × 442,231,327.10
  4. Step 4: Simplify right side
    781,330,132.16x = 476,817,215,187,195,136
  5. Step 5: Solve for x
    x = 476,817,215,187,195,136/781,330,132.16
  6. Step 6: Final answer
    x = 610,263,441.23

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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.