Home / 490,681,975.80-735,397,773.30-260,761,207.80

Finding the Fourth Proportional to 490,681,975.80, 735,397,773.30 and 260,761,207.80

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Solution

The fourth proportional to 490,681,975.80, 735,397,773.30 and 260,761,207.80 is: 390,809,569.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,681,975.80 : 735,397,773.30 = 260,761,207.80 : x
  2. Step 2: Convert to fraction form
    490,681,975.80/735,397,773.30 = 260,761,207.80/x
  3. Step 3: Cross multiply
    490,681,975.80x = 735,397,773.30 × 260,761,207.80
  4. Step 4: Simplify right side
    490,681,975.80x = 191,763,211,579,138,592
  5. Step 5: Solve for x
    x = 191,763,211,579,138,592/490,681,975.80
  6. Step 6: Final answer
    x = 390,809,569.21

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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.