Home / 15,015,185.42-20,720,681.55-8,488,816.88

Finding the Fourth Proportional to 15,015,185.42, 20,720,681.55 and 8,488,816.88

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Solution

The fourth proportional to 15,015,185.42, 20,720,681.55 and 8,488,816.88 is: 11,714,412.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,015,185.42 : 20,720,681.55 = 8,488,816.88 : x
  2. Step 2: Convert to fraction form
    15,015,185.42/20,720,681.55 = 8,488,816.88/x
  3. Step 3: Cross multiply
    15,015,185.42x = 20,720,681.55 × 8,488,816.88
  4. Step 4: Simplify right side
    15,015,185.42x = 175,894,071,203,141.16
  5. Step 5: Solve for x
    x = 175,894,071,203,141.16/15,015,185.42
  6. Step 6: Final answer
    x = 11,714,412.20

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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.