Home / 28,479,086.47-39,300,216.79-15,919,807.04

Finding the Fourth Proportional to 28,479,086.47, 39,300,216.79 and 15,919,807.04

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Solution

The fourth proportional to 28,479,086.47, 39,300,216.79 and 15,919,807.04 is: 21,968,818.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,479,086.47 : 39,300,216.79 = 15,919,807.04 : x
  2. Step 2: Convert to fraction form
    28,479,086.47/39,300,216.79 = 15,919,807.04/x
  3. Step 3: Cross multiply
    28,479,086.47x = 39,300,216.79 × 15,919,807.04
  4. Step 4: Simplify right side
    28,479,086.47x = 625,651,867,926,968.12
  5. Step 5: Solve for x
    x = 625,651,867,926,968.12/28,479,086.47
  6. Step 6: Final answer
    x = 21,968,818.02

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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.