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Finding the Fourth Proportional to 1,978,770,985.22, 2,730,694,035.62 and 1,074,518,842.46

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Solution

The fourth proportional to 1,978,770,985.22, 2,730,694,035.62 and 1,074,518,842.46 is: 1,482,830,613.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,978,770,985.22 : 2,730,694,035.62 = 1,074,518,842.46 : x
  2. Step 2: Convert to fraction form
    1,978,770,985.22/2,730,694,035.62 = 1,074,518,842.46/x
  3. Step 3: Cross multiply
    1,978,770,985.22x = 2,730,694,035.62 × 1,074,518,842.46
  4. Step 4: Simplify right side
    1,978,770,985.22x = 2,934,182,194,266,828,288
  5. Step 5: Solve for x
    x = 2,934,182,194,266,828,288/1,978,770,985.22
  6. Step 6: Final answer
    x = 1,482,830,613.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.