Home / 286,011,018.80-429,016,528.20-221,440,937.30

Finding the Fourth Proportional to 286,011,018.80, 429,016,528.20 and 221,440,937.30

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Solution

The fourth proportional to 286,011,018.80, 429,016,528.20 and 221,440,937.30 is: 332,161,405.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,011,018.80 : 429,016,528.20 = 221,440,937.30 : x
  2. Step 2: Convert to fraction form
    286,011,018.80/429,016,528.20 = 221,440,937.30/x
  3. Step 3: Cross multiply
    286,011,018.80x = 429,016,528.20 × 221,440,937.30
  4. Step 4: Simplify right side
    286,011,018.80x = 95,001,822,121,799,888
  5. Step 5: Solve for x
    x = 95,001,822,121,799,888/286,011,018.80
  6. Step 6: Final answer
    x = 332,161,405.95

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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.