Home / 80,265,087.60-120,397,631.40-74,890,316.40

Finding the Fourth Proportional to 80,265,087.60, 120,397,631.40 and 74,890,316.40

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Solution

The fourth proportional to 80,265,087.60, 120,397,631.40 and 74,890,316.40 is: 112,335,474.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,265,087.60 : 120,397,631.40 = 74,890,316.40 : x
  2. Step 2: Convert to fraction form
    80,265,087.60/120,397,631.40 = 74,890,316.40/x
  3. Step 3: Cross multiply
    80,265,087.60x = 120,397,631.40 × 74,890,316.40
  4. Step 4: Simplify right side
    80,265,087.60x = 9,016,616,709,356,576
  5. Step 5: Solve for x
    x = 9,016,616,709,356,576/80,265,087.60
  6. Step 6: Final answer
    x = 112,335,474.60

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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.