Home / 207,368,031.70-311,052,047.55-71,008,095.70

Finding the Fourth Proportional to 207,368,031.70, 311,052,047.55 and 71,008,095.70

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Solution

The fourth proportional to 207,368,031.70, 311,052,047.55 and 71,008,095.70 is: 106,512,143.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,368,031.70 : 311,052,047.55 = 71,008,095.70 : x
  2. Step 2: Convert to fraction form
    207,368,031.70/311,052,047.55 = 71,008,095.70/x
  3. Step 3: Cross multiply
    207,368,031.70x = 311,052,047.55 × 71,008,095.70
  4. Step 4: Simplify right side
    207,368,031.70x = 22,087,213,560,111,352
  5. Step 5: Solve for x
    x = 22,087,213,560,111,352/207,368,031.70
  6. Step 6: Final answer
    x = 106,512,143.55

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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.