Home / 13,374,335.78-18,456,271.07-7,868,065.17

Finding the Fourth Proportional to 13,374,335.78, 18,456,271.07 and 7,868,065.17

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Solution

The fourth proportional to 13,374,335.78, 18,456,271.07 and 7,868,065.17 is: 10,857,746.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,374,335.78 : 18,456,271.07 = 7,868,065.17 : x
  2. Step 2: Convert to fraction form
    13,374,335.78/18,456,271.07 = 7,868,065.17/x
  3. Step 3: Cross multiply
    13,374,335.78x = 18,456,271.07 × 7,868,065.17
  4. Step 4: Simplify right side
    13,374,335.78x = 145,215,143,534,605.31
  5. Step 5: Solve for x
    x = 145,215,143,534,605.31/13,374,335.78
  6. Step 6: Final answer
    x = 10,857,746.21

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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.