Home / 3,319,222,247.20-4,978,833,370.80-3,128,753,792.80

Finding the Fourth Proportional to 3,319,222,247.20, 4,978,833,370.80 and 3,128,753,792.80

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Solution

The fourth proportional to 3,319,222,247.20, 4,978,833,370.80 and 3,128,753,792.80 is: 4,693,130,689.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,319,222,247.20 : 4,978,833,370.80 = 3,128,753,792.80 : x
  2. Step 2: Convert to fraction form
    3,319,222,247.20/4,978,833,370.80 = 3,128,753,792.80/x
  3. Step 3: Cross multiply
    3,319,222,247.20x = 4,978,833,370.80 × 3,128,753,792.80
  4. Step 4: Simplify right side
    3,319,222,247.20x = 15,577,543,792,609,710,080
  5. Step 5: Solve for x
    x = 15,577,543,792,609,710,080/3,319,222,247.20
  6. Step 6: Final answer
    x = 4,693,130,689.20

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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.