Home / 120,967,553.40-181,451,330.10-30,091,142.40

Finding the Fourth Proportional to 120,967,553.40, 181,451,330.10 and 30,091,142.40

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Solution

The fourth proportional to 120,967,553.40, 181,451,330.10 and 30,091,142.40 is: 45,136,713.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,967,553.40 : 181,451,330.10 = 30,091,142.40 : x
  2. Step 2: Convert to fraction form
    120,967,553.40/181,451,330.10 = 30,091,142.40/x
  3. Step 3: Cross multiply
    120,967,553.40x = 181,451,330.10 × 30,091,142.40
  4. Step 4: Simplify right side
    120,967,553.40x = 5,460,077,812,708,506
  5. Step 5: Solve for x
    x = 5,460,077,812,708,506/120,967,553.40
  6. Step 6: Final answer
    x = 45,136,713.60

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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.