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Finding the Fourth Proportional to 12,602,807.80, 18,904,211.70 and 4,084,005.40

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Solution

The fourth proportional to 12,602,807.80, 18,904,211.70 and 4,084,005.40 is: 6,126,008.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,602,807.80 : 18,904,211.70 = 4,084,005.40 : x
  2. Step 2: Convert to fraction form
    12,602,807.80/18,904,211.70 = 4,084,005.40/x
  3. Step 3: Cross multiply
    12,602,807.80x = 18,904,211.70 × 4,084,005.40
  4. Step 4: Simplify right side
    12,602,807.80x = 77,204,902,665,543.17
  5. Step 5: Solve for x
    x = 77,204,902,665,543.17/12,602,807.80
  6. Step 6: Final answer
    x = 6,126,008.10

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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.