Home / 27,871,981.20-41,807,971.80-20,697,527.70

Finding the Fourth Proportional to 27,871,981.20, 41,807,971.80 and 20,697,527.70

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Solution

The fourth proportional to 27,871,981.20, 41,807,971.80 and 20,697,527.70 is: 31,046,291.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,871,981.20 : 41,807,971.80 = 20,697,527.70 : x
  2. Step 2: Convert to fraction form
    27,871,981.20/41,807,971.80 = 20,697,527.70/x
  3. Step 3: Cross multiply
    27,871,981.20x = 41,807,971.80 × 20,697,527.70
  4. Step 4: Simplify right side
    27,871,981.20x = 865,321,654,411,318.75
  5. Step 5: Solve for x
    x = 865,321,654,411,318.75/27,871,981.20
  6. Step 6: Final answer
    x = 31,046,291.55

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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.