Home / 342,281,386.60-513,366,988.70-99,887,479.40

Finding the Fourth Proportional to 342,281,386.60, 513,366,988.70 and 99,887,479.40

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Solution

The fourth proportional to 342,281,386.60, 513,366,988.70 and 99,887,479.40 is: 149,815,141.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,281,386.60 : 513,366,988.70 = 99,887,479.40 : x
  2. Step 2: Convert to fraction form
    342,281,386.60/513,366,988.70 = 99,887,479.40/x
  3. Step 3: Cross multiply
    342,281,386.60x = 513,366,988.70 × 99,887,479.40
  4. Step 4: Simplify right side
    342,281,386.60x = 51,278,934,508,411,288
  5. Step 5: Solve for x
    x = 51,278,934,508,411,288/342,281,386.60
  6. Step 6: Final answer
    x = 149,815,141.92

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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.