Home / 8,201,479.20-12,302,218.80-7,828,231.20

Finding the Fourth Proportional to 8,201,479.20, 12,302,218.80 and 7,828,231.20

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Solution

The fourth proportional to 8,201,479.20, 12,302,218.80 and 7,828,231.20 is: 11,742,346.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,201,479.20 : 12,302,218.80 = 7,828,231.20 : x
  2. Step 2: Convert to fraction form
    8,201,479.20/12,302,218.80 = 7,828,231.20/x
  3. Step 3: Cross multiply
    8,201,479.20x = 12,302,218.80 × 7,828,231.20
  4. Step 4: Simplify right side
    8,201,479.20x = 96,304,613,039,386.56
  5. Step 5: Solve for x
    x = 96,304,613,039,386.56/8,201,479.20
  6. Step 6: Final answer
    x = 11,742,346.80

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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.