Home / 12,819,287.21-17,690,827.28-7,017,973.25

Finding the Fourth Proportional to 12,819,287.21, 17,690,827.28 and 7,017,973.25

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Solution

The fourth proportional to 12,819,287.21, 17,690,827.28 and 7,017,973.25 is: 9,684,918.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,819,287.21 : 17,690,827.28 = 7,017,973.25 : x
  2. Step 2: Convert to fraction form
    12,819,287.21/17,690,827.28 = 7,017,973.25/x
  3. Step 3: Cross multiply
    12,819,287.21x = 17,690,827.28 × 7,017,973.25
  4. Step 4: Simplify right side
    12,819,287.21x = 124,153,752,497,866.25
  5. Step 5: Solve for x
    x = 124,153,752,497,866.25/12,819,287.21
  6. Step 6: Final answer
    x = 9,684,918.55

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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.