Home / 85,003,294.60-127,788,377.10-72,532,145.80

Finding the Fourth Proportional to 85,003,294.60, 127,788,377.10 and 72,532,145.80

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Solution

The fourth proportional to 85,003,294.60, 127,788,377.10 and 72,532,145.80 is: 109,040,070.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,003,294.60 : 127,788,377.10 = 72,532,145.80 : x
  2. Step 2: Convert to fraction form
    85,003,294.60/127,788,377.10 = 72,532,145.80/x
  3. Step 3: Cross multiply
    85,003,294.60x = 127,788,377.10 × 72,532,145.80
  4. Step 4: Simplify right side
    85,003,294.60x = 9,268,765,199,362,580
  5. Step 5: Solve for x
    x = 9,268,765,199,362,580/85,003,294.60
  6. Step 6: Final answer
    x = 109,040,070.07

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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.