Home / 425,471,945.60-637,760,020.80-166,587,132.80

Finding the Fourth Proportional to 425,471,945.60, 637,760,020.80 and 166,587,132.80

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Solution

The fourth proportional to 425,471,945.60, 637,760,020.80 and 166,587,132.80 is: 249,705,331.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,471,945.60 : 637,760,020.80 = 166,587,132.80 : x
  2. Step 2: Convert to fraction form
    425,471,945.60/637,760,020.80 = 166,587,132.80/x
  3. Step 3: Cross multiply
    425,471,945.60x = 637,760,020.80 × 166,587,132.80
  4. Step 4: Simplify right side
    425,471,945.60x = 106,242,613,279,540,368
  5. Step 5: Solve for x
    x = 106,242,613,279,540,368/425,471,945.60
  6. Step 6: Final answer
    x = 249,705,331.64

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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.