Home / 156,565,885.25-216,048,321.50-90,490,663.19

Finding the Fourth Proportional to 156,565,885.25, 216,048,321.50 and 90,490,663.19

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Solution

The fourth proportional to 156,565,885.25, 216,048,321.50 and 90,490,663.19 is: 124,869,832.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,565,885.25 : 216,048,321.50 = 90,490,663.19 : x
  2. Step 2: Convert to fraction form
    156,565,885.25/216,048,321.50 = 90,490,663.19/x
  3. Step 3: Cross multiply
    156,565,885.25x = 216,048,321.50 × 90,490,663.19
  4. Step 4: Simplify right side
    156,565,885.25x = 19,550,355,894,775,820
  5. Step 5: Solve for x
    x = 19,550,355,894,775,820/156,565,885.25
  6. Step 6: Final answer
    x = 124,869,832.68

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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.