Home / 15,215,296.93-20,999,262.96-9,415,946.95

Finding the Fourth Proportional to 15,215,296.93, 20,999,262.96 and 9,415,946.95

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Solution

The fourth proportional to 15,215,296.93, 20,999,262.96 and 9,415,946.95 is: 12,995,339.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,215,296.93 : 20,999,262.96 = 9,415,946.95 : x
  2. Step 2: Convert to fraction form
    15,215,296.93/20,999,262.96 = 9,415,946.95/x
  3. Step 3: Cross multiply
    15,215,296.93x = 20,999,262.96 × 9,415,946.95
  4. Step 4: Simplify right side
    15,215,296.93x = 197,727,946,020,459.97
  5. Step 5: Solve for x
    x = 197,727,946,020,459.97/15,215,296.93
  6. Step 6: Final answer
    x = 12,995,339.29

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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.