Home / 458,970,221.92-688,600,869.52-163,859,010.72

Finding the Fourth Proportional to 458,970,221.92, 688,600,869.52 and 163,859,010.72

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Solution

The fourth proportional to 458,970,221.92, 688,600,869.52 and 163,859,010.72 is: 245,840,474.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,970,221.92 : 688,600,869.52 = 163,859,010.72 : x
  2. Step 2: Convert to fraction form
    458,970,221.92/688,600,869.52 = 163,859,010.72/x
  3. Step 3: Cross multiply
    458,970,221.92x = 688,600,869.52 × 163,859,010.72
  4. Step 4: Simplify right side
    458,970,221.92x = 112,833,457,260,478,992
  5. Step 5: Solve for x
    x = 112,833,457,260,478,992/458,970,221.92
  6. Step 6: Final answer
    x = 245,840,474.77

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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.