Home / 8,375,852.52-12,574,409.64-7,121,651.76

Finding the Fourth Proportional to 8,375,852.52, 12,574,409.64 and 7,121,651.76

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Solution

The fourth proportional to 8,375,852.52, 12,574,409.64 and 7,121,651.76 is: 10,691,516.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,375,852.52 : 12,574,409.64 = 7,121,651.76 : x
  2. Step 2: Convert to fraction form
    8,375,852.52/12,574,409.64 = 7,121,651.76/x
  3. Step 3: Cross multiply
    8,375,852.52x = 12,574,409.64 × 7,121,651.76
  4. Step 4: Simplify right side
    8,375,852.52x = 89,550,566,543,666.97
  5. Step 5: Solve for x
    x = 89,550,566,543,666.97/8,375,852.52
  6. Step 6: Final answer
    x = 10,691,516.63

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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.