Home / 418,251,143,569.85-627,663,292,221.15-145,975,392,432.86

Finding the Fourth Proportional to 418,251,143,569.85, 627,663,292,221.15 and 145,975,392,432.86

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Solution

The fourth proportional to 418,251,143,569.85, 627,663,292,221.15 and 145,975,392,432.86 is: 219,063,107,910.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,251,143,569.85 : 627,663,292,221.15 = 145,975,392,432.86 : x
  2. Step 2: Convert to fraction form
    418,251,143,569.85/627,663,292,221.15 = 145,975,392,432.86/x
  3. Step 3: Cross multiply
    418,251,143,569.85x = 627,663,292,221.15 × 145,975,392,432.86
  4. Step 4: Simplify right side
    418,251,143,569.85x = 91,623,395,397,683,243,909,120
  5. Step 5: Solve for x
    x = 91,623,395,397,683,243,909,120/418,251,143,569.85
  6. Step 6: Final answer
    x = 219,063,107,910.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.