Home / 15,615,535.92-21,549,436.20-8,740,017.78

Finding the Fourth Proportional to 15,615,535.92, 21,549,436.20 and 8,740,017.78

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Solution

The fourth proportional to 15,615,535.92, 21,549,436.20 and 8,740,017.78 is: 12,061,222.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,615,535.92 : 21,549,436.20 = 8,740,017.78 : x
  2. Step 2: Convert to fraction form
    15,615,535.92/21,549,436.20 = 8,740,017.78/x
  3. Step 3: Cross multiply
    15,615,535.92x = 21,549,436.20 × 8,740,017.78
  4. Step 4: Simplify right side
    15,615,535.92x = 188,342,455,536,975.62
  5. Step 5: Solve for x
    x = 188,342,455,536,975.62/15,615,535.92
  6. Step 6: Final answer
    x = 12,061,222.65

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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.