Home / 21,789,017.70-32,683,526.55-18,387,795.30

Finding the Fourth Proportional to 21,789,017.70, 32,683,526.55 and 18,387,795.30

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Solution

The fourth proportional to 21,789,017.70, 32,683,526.55 and 18,387,795.30 is: 27,581,692.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,789,017.70 : 32,683,526.55 = 18,387,795.30 : x
  2. Step 2: Convert to fraction form
    21,789,017.70/32,683,526.55 = 18,387,795.30/x
  3. Step 3: Cross multiply
    21,789,017.70x = 32,683,526.55 × 18,387,795.30
  4. Step 4: Simplify right side
    21,789,017.70x = 600,977,995,883,515.25
  5. Step 5: Solve for x
    x = 600,977,995,883,515.25/21,789,017.70
  6. Step 6: Final answer
    x = 27,581,692.95

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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.