Home / 15,665,778.52-21,618,948.54-8,696,927.32

Finding the Fourth Proportional to 15,665,778.52, 21,618,948.54 and 8,696,927.32

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Solution

The fourth proportional to 15,665,778.52, 21,618,948.54 and 8,696,927.32 is: 12,001,856.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,665,778.52 : 21,618,948.54 = 8,696,927.32 : x
  2. Step 2: Convert to fraction form
    15,665,778.52/21,618,948.54 = 8,696,927.32/x
  3. Step 3: Cross multiply
    15,665,778.52x = 21,618,948.54 × 8,696,927.32
  4. Step 4: Simplify right side
    15,665,778.52x = 188,018,424,187,200.12
  5. Step 5: Solve for x
    x = 188,018,424,187,200.12/15,665,778.52
  6. Step 6: Final answer
    x = 12,001,856.40

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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.