Home / 15,001,438.55-20,702,084.59-8,125,920.61

Finding the Fourth Proportional to 15,001,438.55, 20,702,084.59 and 8,125,920.61

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Solution

The fourth proportional to 15,001,438.55, 20,702,084.59 and 8,125,920.61 is: 11,213,824.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,001,438.55 : 20,702,084.59 = 8,125,920.61 : x
  2. Step 2: Convert to fraction form
    15,001,438.55/20,702,084.59 = 8,125,920.61/x
  3. Step 3: Cross multiply
    15,001,438.55x = 20,702,084.59 × 8,125,920.61
  4. Step 4: Simplify right side
    15,001,438.55x = 168,223,495,798,246.56
  5. Step 5: Solve for x
    x = 168,223,495,798,246.56/15,001,438.55
  6. Step 6: Final answer
    x = 11,213,824.28

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1.5x scale

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.