Home / 71,218,085.20-106,827,127.80-66,116,251.60

Finding the Fourth Proportional to 71,218,085.20, 106,827,127.80 and 66,116,251.60

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Solution

The fourth proportional to 71,218,085.20, 106,827,127.80 and 66,116,251.60 is: 99,174,377.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,218,085.20 : 106,827,127.80 = 66,116,251.60 : x
  2. Step 2: Convert to fraction form
    71,218,085.20/106,827,127.80 = 66,116,251.60/x
  3. Step 3: Cross multiply
    71,218,085.20x = 106,827,127.80 × 66,116,251.60
  4. Step 4: Simplify right side
    71,218,085.20x = 7,063,009,259,330,154
  5. Step 5: Solve for x
    x = 7,063,009,259,330,154/71,218,085.20
  6. Step 6: Final answer
    x = 99,174,377.40

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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.