Home / 286,011,010.80-429,016,516.20-221,440,929.30

Finding the Fourth Proportional to 286,011,010.80, 429,016,516.20 and 221,440,929.30

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Solution

The fourth proportional to 286,011,010.80, 429,016,516.20 and 221,440,929.30 is: 332,161,393.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,011,010.80 : 429,016,516.20 = 221,440,929.30 : x
  2. Step 2: Convert to fraction form
    286,011,010.80/429,016,516.20 = 221,440,929.30/x
  3. Step 3: Cross multiply
    286,011,010.80x = 429,016,516.20 × 221,440,929.30
  4. Step 4: Simplify right side
    286,011,010.80x = 95,001,816,032,376,512
  5. Step 5: Solve for x
    x = 95,001,816,032,376,512/286,011,010.80
  6. Step 6: Final answer
    x = 332,161,393.95

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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.