Home / 15,349,442.68-21,185,003.82-9,154,886.68

Finding the Fourth Proportional to 15,349,442.68, 21,185,003.82 and 9,154,886.68

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Solution

The fourth proportional to 15,349,442.68, 21,185,003.82 and 9,154,886.68 is: 12,635,397.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,349,442.68 : 21,185,003.82 = 9,154,886.68 : x
  2. Step 2: Convert to fraction form
    15,349,442.68/21,185,003.82 = 9,154,886.68/x
  3. Step 3: Cross multiply
    15,349,442.68x = 21,185,003.82 × 9,154,886.68
  4. Step 4: Simplify right side
    15,349,442.68x = 193,946,309,287,467.12
  5. Step 5: Solve for x
    x = 193,946,309,287,467.12/15,349,442.68
  6. Step 6: Final answer
    x = 12,635,397.48

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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.