Home / 15,520,242.16-21,416,909.52-9,321,605.68

Finding the Fourth Proportional to 15,520,242.16, 21,416,909.52 and 9,321,605.68

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Solution

The fourth proportional to 15,520,242.16, 21,416,909.52 and 9,321,605.68 is: 12,863,200.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,520,242.16 : 21,416,909.52 = 9,321,605.68 : x
  2. Step 2: Convert to fraction form
    15,520,242.16/21,416,909.52 = 9,321,605.68/x
  3. Step 3: Cross multiply
    15,520,242.16x = 21,416,909.52 × 9,321,605.68
  4. Step 4: Simplify right side
    15,520,242.16x = 199,639,985,429,678.06
  5. Step 5: Solve for x
    x = 199,639,985,429,678.06/15,520,242.16
  6. Step 6: Final answer
    x = 12,863,200.42

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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.