Home / 221,429,602.70-332,144,404.05-129,218,684.30

Finding the Fourth Proportional to 221,429,602.70, 332,144,404.05 and 129,218,684.30

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Solution

The fourth proportional to 221,429,602.70, 332,144,404.05 and 129,218,684.30 is: 193,828,026.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,429,602.70 : 332,144,404.05 = 129,218,684.30 : x
  2. Step 2: Convert to fraction form
    221,429,602.70/332,144,404.05 = 129,218,684.30/x
  3. Step 3: Cross multiply
    221,429,602.70x = 332,144,404.05 × 129,218,684.30
  4. Step 4: Simplify right side
    221,429,602.70x = 42,919,262,888,948,592
  5. Step 5: Solve for x
    x = 42,919,262,888,948,592/221,429,602.70
  6. Step 6: Final answer
    x = 193,828,026.45

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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.