Home / 85,003,095.60-127,788,078.60-72,531,946.80

Finding the Fourth Proportional to 85,003,095.60, 127,788,078.60 and 72,531,946.80

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Solution

The fourth proportional to 85,003,095.60, 127,788,078.60 and 72,531,946.80 is: 109,039,771.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,003,095.60 : 127,788,078.60 = 72,531,946.80 : x
  2. Step 2: Convert to fraction form
    85,003,095.60/127,788,078.60 = 72,531,946.80/x
  3. Step 3: Cross multiply
    85,003,095.60x = 127,788,078.60 × 72,531,946.80
  4. Step 4: Simplify right side
    85,003,095.60x = 9,268,718,118,689,418
  5. Step 5: Solve for x
    x = 9,268,718,118,689,418/85,003,095.60
  6. Step 6: Final answer
    x = 109,039,771.47

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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.