Home / 103,364,939.20-142,649,970.28-56,955,181.04

Finding the Fourth Proportional to 103,364,939.20, 142,649,970.28 and 56,955,181.04

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Solution

The fourth proportional to 103,364,939.20, 142,649,970.28 and 56,955,181.04 is: 78,601,651.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,364,939.20 : 142,649,970.28 = 56,955,181.04 : x
  2. Step 2: Convert to fraction form
    103,364,939.20/142,649,970.28 = 56,955,181.04/x
  3. Step 3: Cross multiply
    103,364,939.20x = 142,649,970.28 × 56,955,181.04
  4. Step 4: Simplify right side
    103,364,939.20x = 8,124,654,882,648,019
  5. Step 5: Solve for x
    x = 8,124,654,882,648,019/103,364,939.20
  6. Step 6: Final answer
    x = 78,601,651.06

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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.