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Finding the Fourth Proportional to 217,223,813.60, 325,835,720.40 and 125,390,808.80

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Solution

The fourth proportional to 217,223,813.60, 325,835,720.40 and 125,390,808.80 is: 188,086,213.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,223,813.60 : 325,835,720.40 = 125,390,808.80 : x
  2. Step 2: Convert to fraction form
    217,223,813.60/325,835,720.40 = 125,390,808.80/x
  3. Step 3: Cross multiply
    217,223,813.60x = 325,835,720.40 × 125,390,808.80
  4. Step 4: Simplify right side
    217,223,813.60x = 40,856,804,516,886,656
  5. Step 5: Solve for x
    x = 40,856,804,516,886,656/217,223,813.60
  6. Step 6: Final answer
    x = 188,086,213.20

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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.