Home / 122,445,146.40-168,967,924.80-76,034,403.84

Finding the Fourth Proportional to 122,445,146.40, 168,967,924.80 and 76,034,403.84

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Solution

The fourth proportional to 122,445,146.40, 168,967,924.80 and 76,034,403.84 is: 104,923,517.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,445,146.40 : 168,967,924.80 = 76,034,403.84 : x
  2. Step 2: Convert to fraction form
    122,445,146.40/168,967,924.80 = 76,034,403.84/x
  3. Step 3: Cross multiply
    122,445,146.40x = 168,967,924.80 × 76,034,403.84
  4. Step 4: Simplify right side
    122,445,146.40x = 12,847,375,430,249,952
  5. Step 5: Solve for x
    x = 12,847,375,430,249,952/122,445,146.40
  6. Step 6: Final answer
    x = 104,923,517.25

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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.