Home / 189,451,019.10-284,176,528.65-128,229,015.90

Finding the Fourth Proportional to 189,451,019.10, 284,176,528.65 and 128,229,015.90

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Solution

The fourth proportional to 189,451,019.10, 284,176,528.65 and 128,229,015.90 is: 192,343,523.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,451,019.10 : 284,176,528.65 = 128,229,015.90 : x
  2. Step 2: Convert to fraction form
    189,451,019.10/284,176,528.65 = 128,229,015.90/x
  3. Step 3: Cross multiply
    189,451,019.10x = 284,176,528.65 × 128,229,015.90
  4. Step 4: Simplify right side
    189,451,019.10x = 36,439,676,610,667,656
  5. Step 5: Solve for x
    x = 36,439,676,610,667,656/189,451,019.10
  6. Step 6: Final answer
    x = 192,343,523.85

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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.