Home / 21,990,692.40-32,986,038.60-11,912,996.40

Finding the Fourth Proportional to 21,990,692.40, 32,986,038.60 and 11,912,996.40

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Solution

The fourth proportional to 21,990,692.40, 32,986,038.60 and 11,912,996.40 is: 17,869,494.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,990,692.40 : 32,986,038.60 = 11,912,996.40 : x
  2. Step 2: Convert to fraction form
    21,990,692.40/32,986,038.60 = 11,912,996.40/x
  3. Step 3: Cross multiply
    21,990,692.40x = 32,986,038.60 × 11,912,996.40
  4. Step 4: Simplify right side
    21,990,692.40x = 392,962,559,092,061.06
  5. Step 5: Solve for x
    x = 392,962,559,092,061.06/21,990,692.40
  6. Step 6: Final answer
    x = 17,869,494.60

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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.