Home / 89,815,071.70-134,722,607.55-80,745,145.30

Finding the Fourth Proportional to 89,815,071.70, 134,722,607.55 and 80,745,145.30

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Solution

The fourth proportional to 89,815,071.70, 134,722,607.55 and 80,745,145.30 is: 121,117,717.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,815,071.70 : 134,722,607.55 = 80,745,145.30 : x
  2. Step 2: Convert to fraction form
    89,815,071.70/134,722,607.55 = 80,745,145.30/x
  3. Step 3: Cross multiply
    89,815,071.70x = 134,722,607.55 × 80,745,145.30
  4. Step 4: Simplify right side
    89,815,071.70x = 10,878,196,521,819,628
  5. Step 5: Solve for x
    x = 10,878,196,521,819,628/89,815,071.70
  6. Step 6: Final answer
    x = 121,117,717.95

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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.