Home / 143,068,600.50-197,423,412.48-81,188,938.86

Finding the Fourth Proportional to 143,068,600.50, 197,423,412.48 and 81,188,938.86

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Solution

The fourth proportional to 143,068,600.50, 197,423,412.48 and 81,188,938.86 is: 112,034,347.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,068,600.50 : 197,423,412.48 = 81,188,938.86 : x
  2. Step 2: Convert to fraction form
    143,068,600.50/197,423,412.48 = 81,188,938.86/x
  3. Step 3: Cross multiply
    143,068,600.50x = 197,423,412.48 × 81,188,938.86
  4. Step 4: Simplify right side
    143,068,600.50x = 16,028,597,365,371,280
  5. Step 5: Solve for x
    x = 16,028,597,365,371,280/143,068,600.50
  6. Step 6: Final answer
    x = 112,034,347.92

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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.