Home / 10,361,721.20-15,542,581.80-7,338,412.40

Finding the Fourth Proportional to 10,361,721.20, 15,542,581.80 and 7,338,412.40

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Solution

The fourth proportional to 10,361,721.20, 15,542,581.80 and 7,338,412.40 is: 11,007,618.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,361,721.20 : 15,542,581.80 = 7,338,412.40 : x
  2. Step 2: Convert to fraction form
    10,361,721.20/15,542,581.80 = 7,338,412.40/x
  3. Step 3: Cross multiply
    10,361,721.20x = 15,542,581.80 × 7,338,412.40
  4. Step 4: Simplify right side
    10,361,721.20x = 114,057,875,009,134.33
  5. Step 5: Solve for x
    x = 114,057,875,009,134.33/10,361,721.20
  6. Step 6: Final answer
    x = 11,007,618.60

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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.