Home / 402,870,135.60-604,305,203.40-130,268,458.80

Finding the Fourth Proportional to 402,870,135.60, 604,305,203.40 and 130,268,458.80

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Solution

The fourth proportional to 402,870,135.60, 604,305,203.40 and 130,268,458.80 is: 195,402,688.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,870,135.60 : 604,305,203.40 = 130,268,458.80 : x
  2. Step 2: Convert to fraction form
    402,870,135.60/604,305,203.40 = 130,268,458.80/x
  3. Step 3: Cross multiply
    402,870,135.60x = 604,305,203.40 × 130,268,458.80
  4. Step 4: Simplify right side
    402,870,135.60x = 78,721,907,491,738,512
  5. Step 5: Solve for x
    x = 78,721,907,491,738,512/402,870,135.60
  6. Step 6: Final answer
    x = 195,402,688.20

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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.