Home / 28,417,282.88-39,219,442.08-18,635,956.16

Finding the Fourth Proportional to 28,417,282.88, 39,219,442.08 and 18,635,956.16

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Solution

The fourth proportional to 28,417,282.88, 39,219,442.08 and 18,635,956.16 is: 25,719,974.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,417,282.88 : 39,219,442.08 = 18,635,956.16 : x
  2. Step 2: Convert to fraction form
    28,417,282.88/39,219,442.08 = 18,635,956.16/x
  3. Step 3: Cross multiply
    28,417,282.88x = 39,219,442.08 × 18,635,956.16
  4. Step 4: Simplify right side
    28,417,282.88x = 730,891,803,222,539.12
  5. Step 5: Solve for x
    x = 730,891,803,222,539.12/28,417,282.88
  6. Step 6: Final answer
    x = 25,719,974.93

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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.