Home / 212,583,626.40-318,875,439.60-161,187,376.80

Finding the Fourth Proportional to 212,583,626.40, 318,875,439.60 and 161,187,376.80

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Solution

The fourth proportional to 212,583,626.40, 318,875,439.60 and 161,187,376.80 is: 241,781,065.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,583,626.40 : 318,875,439.60 = 161,187,376.80 : x
  2. Step 2: Convert to fraction form
    212,583,626.40/318,875,439.60 = 161,187,376.80/x
  3. Step 3: Cross multiply
    212,583,626.40x = 318,875,439.60 × 161,187,376.80
  4. Step 4: Simplify right side
    212,583,626.40x = 51,398,695,635,070,848
  5. Step 5: Solve for x
    x = 51,398,695,635,070,848/212,583,626.40
  6. Step 6: Final answer
    x = 241,781,065.20

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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.