Home / 913,458,355.92-1,260,573,779.52-495,770,647.68

Finding the Fourth Proportional to 913,458,355.92, 1,260,573,779.52 and 495,770,647.68

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Solution

The fourth proportional to 913,458,355.92, 1,260,573,779.52 and 495,770,647.68 is: 684,164,171.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,458,355.92 : 1,260,573,779.52 = 495,770,647.68 : x
  2. Step 2: Convert to fraction form
    913,458,355.92/1,260,573,779.52 = 495,770,647.68/x
  3. Step 3: Cross multiply
    913,458,355.92x = 1,260,573,779.52 × 495,770,647.68
  4. Step 4: Simplify right side
    913,458,355.92x = 624,955,479,121,055,872
  5. Step 5: Solve for x
    x = 624,955,479,121,055,872/913,458,355.92
  6. Step 6: Final answer
    x = 684,164,171.33

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1.5x scale

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.