Home / 490,681,979.30-735,397,778.55-260,761,211.30

Finding the Fourth Proportional to 490,681,979.30, 735,397,778.55 and 260,761,211.30

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Solution

The fourth proportional to 490,681,979.30, 735,397,778.55 and 260,761,211.30 is: 390,809,574.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,681,979.30 : 735,397,778.55 = 260,761,211.30 : x
  2. Step 2: Convert to fraction form
    490,681,979.30/735,397,778.55 = 260,761,211.30/x
  3. Step 3: Cross multiply
    490,681,979.30x = 735,397,778.55 × 260,761,211.30
  4. Step 4: Simplify right side
    490,681,979.30x = 191,763,215,522,027,168
  5. Step 5: Solve for x
    x = 191,763,215,522,027,168/490,681,979.30
  6. Step 6: Final answer
    x = 390,809,574.45

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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.