Home / 156,565,887.50-216,048,324.60-90,490,665.44

Finding the Fourth Proportional to 156,565,887.50, 216,048,324.60 and 90,490,665.44

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Solution

The fourth proportional to 156,565,887.50, 216,048,324.60 and 90,490,665.44 is: 124,869,835.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,565,887.50 : 216,048,324.60 = 90,490,665.44 : x
  2. Step 2: Convert to fraction form
    156,565,887.50/216,048,324.60 = 90,490,665.44/x
  3. Step 3: Cross multiply
    156,565,887.50x = 216,048,324.60 × 90,490,665.44
  4. Step 4: Simplify right side
    156,565,887.50x = 19,550,356,660,791,240
  5. Step 5: Solve for x
    x = 19,550,356,660,791,240/156,565,887.50
  6. Step 6: Final answer
    x = 124,869,835.78

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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.