Home / 42,572,005.10-63,858,007.65-12,280,856.30

Finding the Fourth Proportional to 42,572,005.10, 63,858,007.65 and 12,280,856.30

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Solution

The fourth proportional to 42,572,005.10, 63,858,007.65 and 12,280,856.30 is: 18,421,284.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,572,005.10 : 63,858,007.65 = 12,280,856.30 : x
  2. Step 2: Convert to fraction form
    42,572,005.10/63,858,007.65 = 12,280,856.30/x
  3. Step 3: Cross multiply
    42,572,005.10x = 63,858,007.65 × 12,280,856.30
  4. Step 4: Simplify right side
    42,572,005.10x = 784,231,015,553,950.75
  5. Step 5: Solve for x
    x = 784,231,015,553,950.75/42,572,005.10
  6. Step 6: Final answer
    x = 18,421,284.45

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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.