Home / 7,171,961.70-9,897,053.95-3,908,711.67

Finding the Fourth Proportional to 7,171,961.70, 9,897,053.95 and 3,908,711.67

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Solution

The fourth proportional to 7,171,961.70, 9,897,053.95 and 3,908,711.67 is: 5,393,884.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,171,961.70 : 9,897,053.95 = 3,908,711.67 : x
  2. Step 2: Convert to fraction form
    7,171,961.70/9,897,053.95 = 3,908,711.67/x
  3. Step 3: Cross multiply
    7,171,961.70x = 9,897,053.95 × 3,908,711.67
  4. Step 4: Simplify right side
    7,171,961.70x = 38,684,730,240,756.53
  5. Step 5: Solve for x
    x = 38,684,730,240,756.53/7,171,961.70
  6. Step 6: Final answer
    x = 5,393,884.11

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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.