Home / 342,281,419.60-513,367,038.20-99,887,512.40

Finding the Fourth Proportional to 342,281,419.60, 513,367,038.20 and 99,887,512.40

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Solution

The fourth proportional to 342,281,419.60, 513,367,038.20 and 99,887,512.40 is: 149,815,191.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,281,419.60 : 513,367,038.20 = 99,887,512.40 : x
  2. Step 2: Convert to fraction form
    342,281,419.60/513,367,038.20 = 99,887,512.40/x
  3. Step 3: Cross multiply
    342,281,419.60x = 513,367,038.20 × 99,887,512.40
  4. Step 4: Simplify right side
    342,281,419.60x = 51,278,956,393,953,776
  5. Step 5: Solve for x
    x = 51,278,956,393,953,776/342,281,419.60
  6. Step 6: Final answer
    x = 149,815,191.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.