Home / 15,412,352.32-21,268,780.16-8,536,686.80

Finding the Fourth Proportional to 15,412,352.32, 21,268,780.16 and 8,536,686.80

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Solution

The fourth proportional to 15,412,352.32, 21,268,780.16 and 8,536,686.80 is: 11,780,480.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,412,352.32 : 21,268,780.16 = 8,536,686.80 : x
  2. Step 2: Convert to fraction form
    15,412,352.32/21,268,780.16 = 8,536,686.80/x
  3. Step 3: Cross multiply
    15,412,352.32x = 21,268,780.16 × 8,536,686.80
  4. Step 4: Simplify right side
    15,412,352.32x = 181,564,914,843,973.91
  5. Step 5: Solve for x
    x = 181,564,914,843,973.91/15,412,352.32
  6. Step 6: Final answer
    x = 11,780,480.43

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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.