Home / 85,003,153.60-127,788,165.60-72,532,004.80

Finding the Fourth Proportional to 85,003,153.60, 127,788,165.60 and 72,532,004.80

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Solution

The fourth proportional to 85,003,153.60, 127,788,165.60 and 72,532,004.80 is: 109,039,858.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,003,153.60 : 127,788,165.60 = 72,532,004.80 : x
  2. Step 2: Convert to fraction form
    85,003,153.60/127,788,165.60 = 72,532,004.80/x
  3. Step 3: Cross multiply
    85,003,153.60x = 127,788,165.60 × 72,532,004.80
  4. Step 4: Simplify right side
    85,003,153.60x = 9,268,731,840,682,394
  5. Step 5: Solve for x
    x = 9,268,731,840,682,394/85,003,153.60
  6. Step 6: Final answer
    x = 109,039,858.50

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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.