Home / 16,290,590.40-22,479,703.20-9,415,517.76

Finding the Fourth Proportional to 16,290,590.40, 22,479,703.20 and 9,415,517.76

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Solution

The fourth proportional to 16,290,590.40, 22,479,703.20 and 9,415,517.76 is: 12,992,656.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,290,590.40 : 22,479,703.20 = 9,415,517.76 : x
  2. Step 2: Convert to fraction form
    16,290,590.40/22,479,703.20 = 9,415,517.76/x
  3. Step 3: Cross multiply
    16,290,590.40x = 22,479,703.20 × 9,415,517.76
  4. Step 4: Simplify right side
    16,290,590.40x = 211,658,044,719,128.81
  5. Step 5: Solve for x
    x = 211,658,044,719,128.81/16,290,590.40
  6. Step 6: Final answer
    x = 12,992,656.47

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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.