Home / 7,791,561.40-11,687,341.92-2,111,785.60

Finding the Fourth Proportional to 7,791,561.40, 11,687,341.92 and 2,111,785.60

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Solution

The fourth proportional to 7,791,561.40, 11,687,341.92 and 2,111,785.60 is: 3,167,678.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,791,561.40 : 11,687,341.92 = 2,111,785.60 : x
  2. Step 2: Convert to fraction form
    7,791,561.40/11,687,341.92 = 2,111,785.60/x
  3. Step 3: Cross multiply
    7,791,561.40x = 11,687,341.92 × 2,111,785.60
  4. Step 4: Simplify right side
    7,791,561.40x = 24,681,160,368,932.35
  5. Step 5: Solve for x
    x = 24,681,160,368,932.35/7,791,561.40
  6. Step 6: Final answer
    x = 3,167,678.35

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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.