Home / 12,218,325.60-16,860,743.52-7,326,247.92

Finding the Fourth Proportional to 12,218,325.60, 16,860,743.52 and 7,326,247.92

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Solution

The fourth proportional to 12,218,325.60, 16,860,743.52 and 7,326,247.92 is: 10,109,894.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,218,325.60 : 16,860,743.52 = 7,326,247.92 : x
  2. Step 2: Convert to fraction form
    12,218,325.60/16,860,743.52 = 7,326,247.92/x
  3. Step 3: Cross multiply
    12,218,325.60x = 16,860,743.52 × 7,326,247.92
  4. Step 4: Simplify right side
    12,218,325.60x = 123,525,987,143,053.47
  5. Step 5: Solve for x
    x = 123,525,987,143,053.47/12,218,325.60
  6. Step 6: Final answer
    x = 10,109,894.86

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1.5x scale

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.