Home / 198,801,254.40-298,201,881.60-53,257,279.20

Finding the Fourth Proportional to 198,801,254.40, 298,201,881.60 and 53,257,279.20

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Solution

The fourth proportional to 198,801,254.40, 298,201,881.60 and 53,257,279.20 is: 79,885,918.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,801,254.40 : 298,201,881.60 = 53,257,279.20 : x
  2. Step 2: Convert to fraction form
    198,801,254.40/298,201,881.60 = 53,257,279.20/x
  3. Step 3: Cross multiply
    198,801,254.40x = 298,201,881.60 × 53,257,279.20
  4. Step 4: Simplify right side
    198,801,254.40x = 15,881,420,866,336,544
  5. Step 5: Solve for x
    x = 15,881,420,866,336,544/198,801,254.40
  6. Step 6: Final answer
    x = 79,885,918.80

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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.