Home / 85,003,208.60-127,788,248.10-72,532,059.80

Finding the Fourth Proportional to 85,003,208.60, 127,788,248.10 and 72,532,059.80

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Solution

The fourth proportional to 85,003,208.60, 127,788,248.10 and 72,532,059.80 is: 109,039,941.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,003,208.60 : 127,788,248.10 = 72,532,059.80 : x
  2. Step 2: Convert to fraction form
    85,003,208.60/127,788,248.10 = 72,532,059.80/x
  3. Step 3: Cross multiply
    85,003,208.60x = 127,788,248.10 × 72,532,059.80
  4. Step 4: Simplify right side
    85,003,208.60x = 9,268,744,852,926,436
  5. Step 5: Solve for x
    x = 9,268,744,852,926,436/85,003,208.60
  6. Step 6: Final answer
    x = 109,039,941.03

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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.