Home / 80,882,117.70-121,323,176.55-76,418,013.30

Finding the Fourth Proportional to 80,882,117.70, 121,323,176.55 and 76,418,013.30

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Solution

The fourth proportional to 80,882,117.70, 121,323,176.55 and 76,418,013.30 is: 114,627,019.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,882,117.70 : 121,323,176.55 = 76,418,013.30 : x
  2. Step 2: Convert to fraction form
    80,882,117.70/121,323,176.55 = 76,418,013.30/x
  3. Step 3: Cross multiply
    80,882,117.70x = 121,323,176.55 × 76,418,013.30
  4. Step 4: Simplify right side
    80,882,117.70x = 9,271,276,119,196,148
  5. Step 5: Solve for x
    x = 9,271,276,119,196,148/80,882,117.70
  6. Step 6: Final answer
    x = 114,627,019.95

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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.