Home / 21,871,328.79-30,181,847.90-12,081,562.28

Finding the Fourth Proportional to 21,871,328.79, 30,181,847.90 and 12,081,562.28

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Solution

The fourth proportional to 21,871,328.79, 30,181,847.90 and 12,081,562.28 is: 16,672,232.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,871,328.79 : 30,181,847.90 = 12,081,562.28 : x
  2. Step 2: Convert to fraction form
    21,871,328.79/30,181,847.90 = 12,081,562.28/x
  3. Step 3: Cross multiply
    21,871,328.79x = 30,181,847.90 × 12,081,562.28
  4. Step 4: Simplify right side
    21,871,328.79x = 364,643,874,918,020.19
  5. Step 5: Solve for x
    x = 364,643,874,918,020.19/21,871,328.79
  6. Step 6: Final answer
    x = 16,672,232.33

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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.