Home / 15,660,873.32-21,614,602.61-9,134,502.57

Finding the Fourth Proportional to 15,660,873.32, 21,614,602.61 and 9,134,502.57

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Solution

The fourth proportional to 15,660,873.32, 21,614,602.61 and 9,134,502.57 is: 12,607,128.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,660,873.32 : 21,614,602.61 = 9,134,502.57 : x
  2. Step 2: Convert to fraction form
    15,660,873.32/21,614,602.61 = 9,134,502.57/x
  3. Step 3: Cross multiply
    15,660,873.32x = 21,614,602.61 × 9,134,502.57
  4. Step 4: Simplify right side
    15,660,873.32x = 197,438,643,113,409.97
  5. Step 5: Solve for x
    x = 197,438,643,113,409.97/15,660,873.32
  6. Step 6: Final answer
    x = 12,607,128.55

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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.