Home / 12,609,280.18-17,400,838.19-7,312,001.88

Finding the Fourth Proportional to 12,609,280.18, 17,400,838.19 and 7,312,001.88

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Solution

The fourth proportional to 12,609,280.18, 17,400,838.19 and 7,312,001.88 is: 10,090,580.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,609,280.18 : 17,400,838.19 = 7,312,001.88 : x
  2. Step 2: Convert to fraction form
    12,609,280.18/17,400,838.19 = 7,312,001.88/x
  3. Step 3: Cross multiply
    12,609,280.18x = 17,400,838.19 × 7,312,001.88
  4. Step 4: Simplify right side
    12,609,280.18x = 127,234,961,497,073.70
  5. Step 5: Solve for x
    x = 127,234,961,497,073.70/12,609,280.18
  6. Step 6: Final answer
    x = 10,090,580.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.