Home / 19,431,149.40-29,146,724.10-18,871,277.40

Finding the Fourth Proportional to 19,431,149.40, 29,146,724.10 and 18,871,277.40

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Solution

The fourth proportional to 19,431,149.40, 29,146,724.10 and 18,871,277.40 is: 28,306,916.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,431,149.40 : 29,146,724.10 = 18,871,277.40 : x
  2. Step 2: Convert to fraction form
    19,431,149.40/29,146,724.10 = 18,871,277.40/x
  3. Step 3: Cross multiply
    19,431,149.40x = 29,146,724.10 × 18,871,277.40
  4. Step 4: Simplify right side
    19,431,149.40x = 550,035,915,792,365.31
  5. Step 5: Solve for x
    x = 550,035,915,792,365.31/19,431,149.40
  6. Step 6: Final answer
    x = 28,306,916.10

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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.