Home / 15,156,689.49-20,916,253.96-8,630,324.28

Finding the Fourth Proportional to 15,156,689.49, 20,916,253.96 and 8,630,324.28

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Solution

The fourth proportional to 15,156,689.49, 20,916,253.96 and 8,630,324.28 is: 11,909,860.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,156,689.49 : 20,916,253.96 = 8,630,324.28 : x
  2. Step 2: Convert to fraction form
    15,156,689.49/20,916,253.96 = 8,630,324.28/x
  3. Step 3: Cross multiply
    15,156,689.49x = 20,916,253.96 × 8,630,324.28
  4. Step 4: Simplify right side
    15,156,689.49x = 180,514,054,376,058.31
  5. Step 5: Solve for x
    x = 180,514,054,376,058.31/15,156,689.49
  6. Step 6: Final answer
    x = 11,909,860.30

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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.