Home / 28,976,670.30-43,465,005.45-8,779,287.90

Finding the Fourth Proportional to 28,976,670.30, 43,465,005.45 and 8,779,287.90

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Solution

The fourth proportional to 28,976,670.30, 43,465,005.45 and 8,779,287.90 is: 13,168,931.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,976,670.30 : 43,465,005.45 = 8,779,287.90 : x
  2. Step 2: Convert to fraction form
    28,976,670.30/43,465,005.45 = 8,779,287.90/x
  3. Step 3: Cross multiply
    28,976,670.30x = 43,465,005.45 × 8,779,287.90
  4. Step 4: Simplify right side
    28,976,670.30x = 381,591,796,420,619.12
  5. Step 5: Solve for x
    x = 381,591,796,420,619.12/28,976,670.30
  6. Step 6: Final answer
    x = 13,168,931.85

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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.