Home / 128,326,627.20-192,489,940.80-122,354,659.20

Finding the Fourth Proportional to 128,326,627.20, 192,489,940.80 and 122,354,659.20

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Solution

The fourth proportional to 128,326,627.20, 192,489,940.80 and 122,354,659.20 is: 183,531,988.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,326,627.20 : 192,489,940.80 = 122,354,659.20 : x
  2. Step 2: Convert to fraction form
    128,326,627.20/192,489,940.80 = 122,354,659.20/x
  3. Step 3: Cross multiply
    128,326,627.20x = 192,489,940.80 × 122,354,659.20
  4. Step 4: Simplify right side
    128,326,627.20x = 23,552,041,106,012,176
  5. Step 5: Solve for x
    x = 23,552,041,106,012,176/128,326,627.20
  6. Step 6: Final answer
    x = 183,531,988.80

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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.