Home / 18,381,902.40-25,350,511.68-11,507,011.20

Finding the Fourth Proportional to 18,381,902.40, 25,350,511.68 and 11,507,011.20

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Solution

The fourth proportional to 18,381,902.40, 25,350,511.68 and 11,507,011.20 is: 15,869,337.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,381,902.40 : 25,350,511.68 = 11,507,011.20 : x
  2. Step 2: Convert to fraction form
    18,381,902.40/25,350,511.68 = 11,507,011.20/x
  3. Step 3: Cross multiply
    18,381,902.40x = 25,350,511.68 × 11,507,011.20
  4. Step 4: Simplify right side
    18,381,902.40x = 291,708,621,827,490.81
  5. Step 5: Solve for x
    x = 291,708,621,827,490.81/18,381,902.40
  6. Step 6: Final answer
    x = 15,869,337.98

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1.5x scale

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.