Home / 343,874,047.20-515,811,070.80-299,084,287.20

Finding the Fourth Proportional to 343,874,047.20, 515,811,070.80 and 299,084,287.20

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Solution

The fourth proportional to 343,874,047.20, 515,811,070.80 and 299,084,287.20 is: 448,626,430.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,874,047.20 : 515,811,070.80 = 299,084,287.20 : x
  2. Step 2: Convert to fraction form
    343,874,047.20/515,811,070.80 = 299,084,287.20/x
  3. Step 3: Cross multiply
    343,874,047.20x = 515,811,070.80 × 299,084,287.20
  4. Step 4: Simplify right side
    343,874,047.20x = 154,270,986,440,086,720
  5. Step 5: Solve for x
    x = 154,270,986,440,086,720/343,874,047.20
  6. Step 6: Final answer
    x = 448,626,430.80

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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.