Home / 39,871,999.78-59,816,463.36-12,586,178.59

Finding the Fourth Proportional to 39,871,999.78, 59,816,463.36 and 12,586,178.59

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Solution

The fourth proportional to 39,871,999.78, 59,816,463.36 and 12,586,178.59 is: 18,881,939.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,871,999.78 : 59,816,463.36 = 12,586,178.59 : x
  2. Step 2: Convert to fraction form
    39,871,999.78/59,816,463.36 = 12,586,178.59/x
  3. Step 3: Cross multiply
    39,871,999.78x = 59,816,463.36 × 12,586,178.59
  4. Step 4: Simplify right side
    39,871,999.78x = 752,860,690,109,138.25
  5. Step 5: Solve for x
    x = 752,860,690,109,138.25/39,871,999.78
  6. Step 6: Final answer
    x = 18,881,939.57

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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.