Home / 115,069,311.84-158,800,477.68-66,176,778.72

Finding the Fourth Proportional to 115,069,311.84, 158,800,477.68 and 66,176,778.72

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Solution

The fourth proportional to 115,069,311.84, 158,800,477.68 and 66,176,778.72 is: 91,326,730.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,069,311.84 : 158,800,477.68 = 66,176,778.72 : x
  2. Step 2: Convert to fraction form
    115,069,311.84/158,800,477.68 = 66,176,778.72/x
  3. Step 3: Cross multiply
    115,069,311.84x = 158,800,477.68 × 66,176,778.72
  4. Step 4: Simplify right side
    115,069,311.84x = 10,508,904,072,059,660
  5. Step 5: Solve for x
    x = 10,508,904,072,059,660/115,069,311.84
  6. Step 6: Final answer
    x = 91,326,730.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.