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Finding the Fourth Proportional to 490,680,830.80, 735,396,055.80 and 260,760,062.80

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Solution

The fourth proportional to 490,680,830.80, 735,396,055.80 and 260,760,062.80 is: 390,807,852.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,680,830.80 : 735,396,055.80 = 260,760,062.80 : x
  2. Step 2: Convert to fraction form
    490,680,830.80/735,396,055.80 = 260,760,062.80/x
  3. Step 3: Cross multiply
    490,680,830.80x = 735,396,055.80 × 260,760,062.80
  4. Step 4: Simplify right side
    490,680,830.80x = 191,761,921,693,280,288
  5. Step 5: Solve for x
    x = 191,761,921,693,280,288/490,680,830.80
  6. Step 6: Final answer
    x = 390,807,852.39

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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.