Home / 12,872,888.68-17,764,598.04-7,072,046.20

Finding the Fourth Proportional to 12,872,888.68, 17,764,598.04 and 7,072,046.20

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Solution

The fourth proportional to 12,872,888.68, 17,764,598.04 and 7,072,046.20 is: 9,759,430.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,872,888.68 : 17,764,598.04 = 7,072,046.20 : x
  2. Step 2: Convert to fraction form
    12,872,888.68/17,764,598.04 = 7,072,046.20/x
  3. Step 3: Cross multiply
    12,872,888.68x = 17,764,598.04 × 7,072,046.20
  4. Step 4: Simplify right side
    12,872,888.68x = 125,632,058,063,309.44
  5. Step 5: Solve for x
    x = 125,632,058,063,309.44/12,872,888.68
  6. Step 6: Final answer
    x = 9,759,430.16

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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.