Home / 387,495,237.95-534,752,250.29-220,205,139.89

Finding the Fourth Proportional to 387,495,237.95, 534,752,250.29 and 220,205,139.89

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Solution

The fourth proportional to 387,495,237.95, 534,752,250.29 and 220,205,139.89 is: 303,888,106.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,495,237.95 : 534,752,250.29 = 220,205,139.89 : x
  2. Step 2: Convert to fraction form
    387,495,237.95/534,752,250.29 = 220,205,139.89/x
  3. Step 3: Cross multiply
    387,495,237.95x = 534,752,250.29 × 220,205,139.89
  4. Step 4: Simplify right side
    387,495,237.95x = 117,755,194,080,500,720
  5. Step 5: Solve for x
    x = 117,755,194,080,500,720/387,495,237.95
  6. Step 6: Final answer
    x = 303,888,106.35

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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.