Home / 151,600,334.92-209,209,092.50-81,985,715.78

Finding the Fourth Proportional to 151,600,334.92, 209,209,092.50 and 81,985,715.78

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Solution

The fourth proportional to 151,600,334.92, 209,209,092.50 and 81,985,715.78 is: 113,140,628.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,600,334.92 : 209,209,092.50 = 81,985,715.78 : x
  2. Step 2: Convert to fraction form
    151,600,334.92/209,209,092.50 = 81,985,715.78/x
  3. Step 3: Cross multiply
    151,600,334.92x = 209,209,092.50 × 81,985,715.78
  4. Step 4: Simplify right side
    151,600,334.92x = 17,152,157,195,455,650
  5. Step 5: Solve for x
    x = 17,152,157,195,455,650/151,600,334.92
  6. Step 6: Final answer
    x = 113,140,628.65

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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.