Home / 21,387,731.91-29,515,077.90-11,598,173.57

Finding the Fourth Proportional to 21,387,731.91, 29,515,077.90 and 11,598,173.57

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Solution

The fourth proportional to 21,387,731.91, 29,515,077.90 and 11,598,173.57 is: 16,005,483.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,387,731.91 : 29,515,077.90 = 11,598,173.57 : x
  2. Step 2: Convert to fraction form
    21,387,731.91/29,515,077.90 = 11,598,173.57/x
  3. Step 3: Cross multiply
    21,387,731.91x = 29,515,077.90 × 11,598,173.57
  4. Step 4: Simplify right side
    21,387,731.91x = 342,320,996,416,271.12
  5. Step 5: Solve for x
    x = 342,320,996,416,271.12/21,387,731.91
  6. Step 6: Final answer
    x = 16,005,483.79

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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.