Home / 781,629,107.43-1,078,666,908.63-424,411,940.13

Finding the Fourth Proportional to 781,629,107.43, 1,078,666,908.63 and 424,411,940.13

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Solution

The fourth proportional to 781,629,107.43, 1,078,666,908.63 and 424,411,940.13 is: 585,698,653.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,629,107.43 : 1,078,666,908.63 = 424,411,940.13 : x
  2. Step 2: Convert to fraction form
    781,629,107.43/1,078,666,908.63 = 424,411,940.13/x
  3. Step 3: Cross multiply
    781,629,107.43x = 1,078,666,908.63 × 424,411,940.13
  4. Step 4: Simplify right side
    781,629,107.43x = 457,799,115,445,687,808
  5. Step 5: Solve for x
    x = 457,799,115,445,687,808/781,629,107.43
  6. Step 6: Final answer
    x = 585,698,653.10

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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.