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Finding the Fourth Proportional to 13,608,000.10, 20,412,000.15 and 9,781,624.90

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Solution

The fourth proportional to 13,608,000.10, 20,412,000.15 and 9,781,624.90 is: 14,672,437.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,608,000.10 : 20,412,000.15 = 9,781,624.90 : x
  2. Step 2: Convert to fraction form
    13,608,000.10/20,412,000.15 = 9,781,624.90/x
  3. Step 3: Cross multiply
    13,608,000.10x = 20,412,000.15 × 9,781,624.90
  4. Step 4: Simplify right side
    13,608,000.10x = 199,662,528,926,043.72
  5. Step 5: Solve for x
    x = 199,662,528,926,043.72/13,608,000.10
  6. Step 6: Final answer
    x = 14,672,437.35

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1.5x scale

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.