Home / 170,355,781.60-255,533,672.40-121,982,840.80

Finding the Fourth Proportional to 170,355,781.60, 255,533,672.40 and 121,982,840.80

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Solution

The fourth proportional to 170,355,781.60, 255,533,672.40 and 121,982,840.80 is: 182,974,261.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,355,781.60 : 255,533,672.40 = 121,982,840.80 : x
  2. Step 2: Convert to fraction form
    170,355,781.60/255,533,672.40 = 121,982,840.80/x
  3. Step 3: Cross multiply
    170,355,781.60x = 255,533,672.40 × 121,982,840.80
  4. Step 4: Simplify right side
    170,355,781.60x = 31,170,723,279,408,552
  5. Step 5: Solve for x
    x = 31,170,723,279,408,552/170,355,781.60
  6. Step 6: Final answer
    x = 182,974,261.20

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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.