Home / 286,011,012.30-429,016,518.45-221,440,930.80

Finding the Fourth Proportional to 286,011,012.30, 429,016,518.45 and 221,440,930.80

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Solution

The fourth proportional to 286,011,012.30, 429,016,518.45 and 221,440,930.80 is: 332,161,396.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,011,012.30 : 429,016,518.45 = 221,440,930.80 : x
  2. Step 2: Convert to fraction form
    286,011,012.30/429,016,518.45 = 221,440,930.80/x
  3. Step 3: Cross multiply
    286,011,012.30x = 429,016,518.45 × 221,440,930.80
  4. Step 4: Simplify right side
    286,011,012.30x = 95,001,817,174,143,376
  5. Step 5: Solve for x
    x = 95,001,817,174,143,376/286,011,012.30
  6. Step 6: Final answer
    x = 332,161,396.20

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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.