Home / 1,979,963,449.89-2,968,098,842.73-668,948,657.73

Finding the Fourth Proportional to 1,979,963,449.89, 2,968,098,842.73 and 668,948,657.73

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Solution

The fourth proportional to 1,979,963,449.89, 2,968,098,842.73 and 668,948,657.73 is: 1,002,799,186.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979,963,449.89 : 2,968,098,842.73 = 668,948,657.73 : x
  2. Step 2: Convert to fraction form
    1,979,963,449.89/2,968,098,842.73 = 668,948,657.73/x
  3. Step 3: Cross multiply
    1,979,963,449.89x = 2,968,098,842.73 × 668,948,657.73
  4. Step 4: Simplify right side
    1,979,963,449.89x = 1,985,505,736,854,200,064
  5. Step 5: Solve for x
    x = 1,985,505,736,854,200,064/1,979,963,449.89
  6. Step 6: Final answer
    x = 1,002,799,186.50

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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.