Home / 18,897,999.10-28,346,998.65-13,103,323.90

Finding the Fourth Proportional to 18,897,999.10, 28,346,998.65 and 13,103,323.90

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Solution

The fourth proportional to 18,897,999.10, 28,346,998.65 and 13,103,323.90 is: 19,654,985.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,897,999.10 : 28,346,998.65 = 13,103,323.90 : x
  2. Step 2: Convert to fraction form
    18,897,999.10/28,346,998.65 = 13,103,323.90/x
  3. Step 3: Cross multiply
    18,897,999.10x = 28,346,998.65 × 13,103,323.90
  4. Step 4: Simplify right side
    18,897,999.10x = 371,439,904,903,812.75
  5. Step 5: Solve for x
    x = 371,439,904,903,812.75/18,897,999.10
  6. Step 6: Final answer
    x = 19,654,985.85

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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.