Home / 387,255,948.76-534,397,618.20-211,040,160.58

Finding the Fourth Proportional to 387,255,948.76, 534,397,618.20 and 211,040,160.58

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Solution

The fourth proportional to 387,255,948.76, 534,397,618.20 and 211,040,160.58 is: 291,226,925.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,255,948.76 : 534,397,618.20 = 211,040,160.58 : x
  2. Step 2: Convert to fraction form
    387,255,948.76/534,397,618.20 = 211,040,160.58/x
  3. Step 3: Cross multiply
    387,255,948.76x = 534,397,618.20 × 211,040,160.58
  4. Step 4: Simplify right side
    387,255,948.76x = 112,779,359,158,497,536
  5. Step 5: Solve for x
    x = 112,779,359,158,497,536/387,255,948.76
  6. Step 6: Final answer
    x = 291,226,925.03

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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.