Home / 10,598,981.20-15,898,471.80-9,780,168.40

Finding the Fourth Proportional to 10,598,981.20, 15,898,471.80 and 9,780,168.40

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Solution

The fourth proportional to 10,598,981.20, 15,898,471.80 and 9,780,168.40 is: 14,670,252.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,598,981.20 : 15,898,471.80 = 9,780,168.40 : x
  2. Step 2: Convert to fraction form
    10,598,981.20/15,898,471.80 = 9,780,168.40/x
  3. Step 3: Cross multiply
    10,598,981.20x = 15,898,471.80 × 9,780,168.40
  4. Step 4: Simplify right side
    10,598,981.20x = 155,489,731,506,651.12
  5. Step 5: Solve for x
    x = 155,489,731,506,651.12/10,598,981.20
  6. Step 6: Final answer
    x = 14,670,252.60

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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.