Home / 8,791,121.76-12,127,883.55-5,304,515.81

Finding the Fourth Proportional to 8,791,121.76, 12,127,883.55 and 5,304,515.81

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Solution

The fourth proportional to 8,791,121.76, 12,127,883.55 and 5,304,515.81 is: 7,317,900.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,791,121.76 : 12,127,883.55 = 5,304,515.81 : x
  2. Step 2: Convert to fraction form
    8,791,121.76/12,127,883.55 = 5,304,515.81/x
  3. Step 3: Cross multiply
    8,791,121.76x = 12,127,883.55 × 5,304,515.81
  4. Step 4: Simplify right side
    8,791,121.76x = 64,332,549,972,174.51
  5. Step 5: Solve for x
    x = 64,332,549,972,174.51/8,791,121.76
  6. Step 6: Final answer
    x = 7,317,900.01

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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.