Home / 143,856,102.60-215,536,148.10-67,021,543.80

Finding the Fourth Proportional to 143,856,102.60, 215,536,148.10 and 67,021,543.80

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Solution

The fourth proportional to 143,856,102.60, 215,536,148.10 and 67,021,543.80 is: 100,416,771.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,856,102.60 : 215,536,148.10 = 67,021,543.80 : x
  2. Step 2: Convert to fraction form
    143,856,102.60/215,536,148.10 = 67,021,543.80/x
  3. Step 3: Cross multiply
    143,856,102.60x = 215,536,148.10 × 67,021,543.80
  4. Step 4: Simplify right side
    143,856,102.60x = 14,445,565,390,367,436
  5. Step 5: Solve for x
    x = 14,445,565,390,367,436/143,856,102.60
  6. Step 6: Final answer
    x = 100,416,771.55

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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.