Home / 369,932,472.20-510,506,633.86-221,253,590.68

Finding the Fourth Proportional to 369,932,472.20, 510,506,633.86 and 221,253,590.68

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Solution

The fourth proportional to 369,932,472.20, 510,506,633.86 and 221,253,590.68 is: 305,329,848.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,932,472.20 : 510,506,633.86 = 221,253,590.68 : x
  2. Step 2: Convert to fraction form
    369,932,472.20/510,506,633.86 = 221,253,590.68/x
  3. Step 3: Cross multiply
    369,932,472.20x = 510,506,633.86 × 221,253,590.68
  4. Step 4: Simplify right side
    369,932,472.20x = 112,951,425,807,485,072
  5. Step 5: Solve for x
    x = 112,951,425,807,485,072/369,932,472.20
  6. Step 6: Final answer
    x = 305,329,848.81

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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.