Home / 127,766,815.20-191,650,222.80-91,487,109.60

Finding the Fourth Proportional to 127,766,815.20, 191,650,222.80 and 91,487,109.60

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Solution

The fourth proportional to 127,766,815.20, 191,650,222.80 and 91,487,109.60 is: 137,230,664.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,766,815.20 : 191,650,222.80 = 91,487,109.60 : x
  2. Step 2: Convert to fraction form
    127,766,815.20/191,650,222.80 = 91,487,109.60/x
  3. Step 3: Cross multiply
    127,766,815.20x = 191,650,222.80 × 91,487,109.60
  4. Step 4: Simplify right side
    127,766,815.20x = 17,533,524,938,168,018
  5. Step 5: Solve for x
    x = 17,533,524,938,168,018/127,766,815.20
  6. Step 6: Final answer
    x = 137,230,664.40

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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.