Home / 15,132,920.66-20,883,934.60-8,257,779.98

Finding the Fourth Proportional to 15,132,920.66, 20,883,934.60 and 8,257,779.98

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Solution

The fourth proportional to 15,132,920.66, 20,883,934.60 and 8,257,779.98 is: 11,396,011.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,132,920.66 : 20,883,934.60 = 8,257,779.98 : x
  2. Step 2: Convert to fraction form
    15,132,920.66/20,883,934.60 = 8,257,779.98/x
  3. Step 3: Cross multiply
    15,132,920.66x = 20,883,934.60 × 8,257,779.98
  4. Step 4: Simplify right side
    15,132,920.66x = 172,454,937,043,509.34
  5. Step 5: Solve for x
    x = 172,454,937,043,509.34/15,132,920.66
  6. Step 6: Final answer
    x = 11,396,011.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.