Home / 67,068,138.30-100,602,207.45-66,430,409.10

Finding the Fourth Proportional to 67,068,138.30, 100,602,207.45 and 66,430,409.10

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Solution

The fourth proportional to 67,068,138.30, 100,602,207.45 and 66,430,409.10 is: 99,645,613.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,068,138.30 : 100,602,207.45 = 66,430,409.10 : x
  2. Step 2: Convert to fraction form
    67,068,138.30/100,602,207.45 = 66,430,409.10/x
  3. Step 3: Cross multiply
    67,068,138.30x = 100,602,207.45 × 66,430,409.10
  4. Step 4: Simplify right side
    67,068,138.30x = 6,683,045,797,266,568
  5. Step 5: Solve for x
    x = 6,683,045,797,266,568/67,068,138.30
  6. Step 6: Final answer
    x = 99,645,613.65

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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.