Home / 12,984,516.90-19,476,775.35-12,488,505.30

Finding the Fourth Proportional to 12,984,516.90, 19,476,775.35 and 12,488,505.30

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Solution

The fourth proportional to 12,984,516.90, 19,476,775.35 and 12,488,505.30 is: 18,732,757.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,984,516.90 : 19,476,775.35 = 12,488,505.30 : x
  2. Step 2: Convert to fraction form
    12,984,516.90/19,476,775.35 = 12,488,505.30/x
  3. Step 3: Cross multiply
    12,984,516.90x = 19,476,775.35 × 12,488,505.30
  4. Step 4: Simplify right side
    12,984,516.90x = 243,235,812,185,384.38
  5. Step 5: Solve for x
    x = 243,235,812,185,384.38/12,984,516.90
  6. Step 6: Final answer
    x = 18,732,757.95

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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.