Home / 10,255,760.60-14,157,307.40-6,390,191.61

Finding the Fourth Proportional to 10,255,760.60, 14,157,307.40 and 6,390,191.61

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Solution

The fourth proportional to 10,255,760.60, 14,157,307.40 and 6,390,191.61 is: 8,821,179.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,255,760.60 : 14,157,307.40 = 6,390,191.61 : x
  2. Step 2: Convert to fraction form
    10,255,760.60/14,157,307.40 = 6,390,191.61/x
  3. Step 3: Cross multiply
    10,255,760.60x = 14,157,307.40 × 6,390,191.61
  4. Step 4: Simplify right side
    10,255,760.60x = 90,467,906,935,719.95
  5. Step 5: Solve for x
    x = 90,467,906,935,719.95/10,255,760.60
  6. Step 6: Final answer
    x = 8,821,179.68

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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.