Home / 156,829,893.20-235,244,839.80-80,127,429.20

Finding the Fourth Proportional to 156,829,893.20, 235,244,839.80 and 80,127,429.20

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Solution

The fourth proportional to 156,829,893.20, 235,244,839.80 and 80,127,429.20 is: 120,191,143.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,829,893.20 : 235,244,839.80 = 80,127,429.20 : x
  2. Step 2: Convert to fraction form
    156,829,893.20/235,244,839.80 = 80,127,429.20/x
  3. Step 3: Cross multiply
    156,829,893.20x = 235,244,839.80 × 80,127,429.20
  4. Step 4: Simplify right side
    156,829,893.20x = 18,849,564,245,739,844
  5. Step 5: Solve for x
    x = 18,849,564,245,739,844/156,829,893.20
  6. Step 6: Final answer
    x = 120,191,143.80

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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.