Home / 217,218,531.40-325,827,797.10-148,343,777.80

Finding the Fourth Proportional to 217,218,531.40, 325,827,797.10 and 148,343,777.80

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Solution

The fourth proportional to 217,218,531.40, 325,827,797.10 and 148,343,777.80 is: 222,515,666.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,218,531.40 : 325,827,797.10 = 148,343,777.80 : x
  2. Step 2: Convert to fraction form
    217,218,531.40/325,827,797.10 = 148,343,777.80/x
  3. Step 3: Cross multiply
    217,218,531.40x = 325,827,797.10 × 148,343,777.80
  4. Step 4: Simplify right side
    217,218,531.40x = 48,334,526,334,065,888
  5. Step 5: Solve for x
    x = 48,334,526,334,065,888/217,218,531.40
  6. Step 6: Final answer
    x = 222,515,666.70

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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.