Home / 21,019,957.11-29,008,401.75-13,282,176.15

Finding the Fourth Proportional to 21,019,957.11, 29,008,401.75 and 13,282,176.15

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Solution

The fourth proportional to 21,019,957.11, 29,008,401.75 and 13,282,176.15 is: 18,329,947.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,019,957.11 : 29,008,401.75 = 13,282,176.15 : x
  2. Step 2: Convert to fraction form
    21,019,957.11/29,008,401.75 = 13,282,176.15/x
  3. Step 3: Cross multiply
    21,019,957.11x = 29,008,401.75 × 13,282,176.15
  4. Step 4: Simplify right side
    21,019,957.11x = 385,294,701,873,468.25
  5. Step 5: Solve for x
    x = 385,294,701,873,468.25/21,019,957.11
  6. Step 6: Final answer
    x = 18,329,947.10

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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.