Home / 15,861,442.77-21,888,714.87-8,985,908.43

Finding the Fourth Proportional to 15,861,442.77, 21,888,714.87 and 8,985,908.43

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Solution

The fourth proportional to 15,861,442.77, 21,888,714.87 and 8,985,908.43 is: 12,400,510.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,861,442.77 : 21,888,714.87 = 8,985,908.43 : x
  2. Step 2: Convert to fraction form
    15,861,442.77/21,888,714.87 = 8,985,908.43/x
  3. Step 3: Cross multiply
    15,861,442.77x = 21,888,714.87 × 8,985,908.43
  4. Step 4: Simplify right side
    15,861,442.77x = 196,689,987,472,199.34
  5. Step 5: Solve for x
    x = 196,689,987,472,199.34/15,861,442.77
  6. Step 6: Final answer
    x = 12,400,510.49

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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.