Home / 310,560,986.40-465,841,479.60-148,919,719.20

Finding the Fourth Proportional to 310,560,986.40, 465,841,479.60 and 148,919,719.20

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Solution

The fourth proportional to 310,560,986.40, 465,841,479.60 and 148,919,719.20 is: 223,379,578.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,560,986.40 : 465,841,479.60 = 148,919,719.20 : x
  2. Step 2: Convert to fraction form
    310,560,986.40/465,841,479.60 = 148,919,719.20/x
  3. Step 3: Cross multiply
    310,560,986.40x = 465,841,479.60 × 148,919,719.20
  4. Step 4: Simplify right side
    310,560,986.40x = 69,372,982,333,744,528
  5. Step 5: Solve for x
    x = 69,372,982,333,744,528/310,560,986.40
  6. Step 6: Final answer
    x = 223,379,578.80

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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.