Home / 189,551,998.20-284,327,997.30-155,114,621.40

Finding the Fourth Proportional to 189,551,998.20, 284,327,997.30 and 155,114,621.40

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Solution

The fourth proportional to 189,551,998.20, 284,327,997.30 and 155,114,621.40 is: 232,671,932.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,551,998.20 : 284,327,997.30 = 155,114,621.40 : x
  2. Step 2: Convert to fraction form
    189,551,998.20/284,327,997.30 = 155,114,621.40/x
  3. Step 3: Cross multiply
    189,551,998.20x = 284,327,997.30 × 155,114,621.40
  4. Step 4: Simplify right side
    189,551,998.20x = 44,103,429,654,609,728
  5. Step 5: Solve for x
    x = 44,103,429,654,609,728/189,551,998.20
  6. Step 6: Final answer
    x = 232,671,932.10

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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.