Home / 781,484,914.90-1,078,451,304.60-429,083,731

Finding the Fourth Proportional to 781,484,914.90, 1,078,451,304.60 and 429,083,731

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Solution

The fourth proportional to 781,484,914.90, 1,078,451,304.60 and 429,083,731 is: 592,136,713.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,484,914.90 : 1,078,451,304.60 = 429,083,731 : x
  2. Step 2: Convert to fraction form
    781,484,914.90/1,078,451,304.60 = 429,083,731/x
  3. Step 3: Cross multiply
    781,484,914.90x = 1,078,451,304.60 × 429,083,731
  4. Step 4: Simplify right side
    781,484,914.90x = 462,745,909,479,585,408
  5. Step 5: Solve for x
    x = 462,745,909,479,585,408/781,484,914.90
  6. Step 6: Final answer
    x = 592,136,713.91

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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.