Home / 15,418,898.27-21,280,345.62-8,891,252.75

Finding the Fourth Proportional to 15,418,898.27, 21,280,345.62 and 8,891,252.75

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Solution

The fourth proportional to 15,418,898.27, 21,280,345.62 and 8,891,252.75 is: 12,271,235.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,418,898.27 : 21,280,345.62 = 8,891,252.75 : x
  2. Step 2: Convert to fraction form
    15,418,898.27/21,280,345.62 = 8,891,252.75/x
  3. Step 3: Cross multiply
    15,418,898.27x = 21,280,345.62 × 8,891,252.75
  4. Step 4: Simplify right side
    15,418,898.27x = 189,208,931,534,634.12
  5. Step 5: Solve for x
    x = 189,208,931,534,634.12/15,418,898.27
  6. Step 6: Final answer
    x = 12,271,235.48

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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.