Home / 21,871,821.40-32,807,732.10-20,612,109.40

Finding the Fourth Proportional to 21,871,821.40, 32,807,732.10 and 20,612,109.40

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Solution

The fourth proportional to 21,871,821.40, 32,807,732.10 and 20,612,109.40 is: 30,918,164.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,871,821.40 : 32,807,732.10 = 20,612,109.40 : x
  2. Step 2: Convert to fraction form
    21,871,821.40/32,807,732.10 = 20,612,109.40/x
  3. Step 3: Cross multiply
    21,871,821.40x = 32,807,732.10 × 20,612,109.40
  4. Step 4: Simplify right side
    21,871,821.40x = 676,236,563,211,091.75
  5. Step 5: Solve for x
    x = 676,236,563,211,091.75/21,871,821.40
  6. Step 6: Final answer
    x = 30,918,164.10

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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.