Home / 76,621,805.60-114,932,708.40-72,842,669.60

Finding the Fourth Proportional to 76,621,805.60, 114,932,708.40 and 72,842,669.60

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Solution

The fourth proportional to 76,621,805.60, 114,932,708.40 and 72,842,669.60 is: 109,264,004.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,621,805.60 : 114,932,708.40 = 72,842,669.60 : x
  2. Step 2: Convert to fraction form
    76,621,805.60/114,932,708.40 = 72,842,669.60/x
  3. Step 3: Cross multiply
    76,621,805.60x = 114,932,708.40 × 72,842,669.60
  4. Step 4: Simplify right side
    76,621,805.60x = 8,372,005,304,214,344
  5. Step 5: Solve for x
    x = 8,372,005,304,214,344/76,621,805.60
  6. Step 6: Final answer
    x = 109,264,004.40

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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.