Home / 127,766,733.60-191,650,100.40-81,850,231.20

Finding the Fourth Proportional to 127,766,733.60, 191,650,100.40 and 81,850,231.20

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Solution

The fourth proportional to 127,766,733.60, 191,650,100.40 and 81,850,231.20 is: 122,775,346.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,766,733.60 : 191,650,100.40 = 81,850,231.20 : x
  2. Step 2: Convert to fraction form
    127,766,733.60/191,650,100.40 = 81,850,231.20/x
  3. Step 3: Cross multiply
    127,766,733.60x = 191,650,100.40 × 81,850,231.20
  4. Step 4: Simplify right side
    127,766,733.60x = 15,686,605,027,243,214
  5. Step 5: Solve for x
    x = 15,686,605,027,243,214/127,766,733.60
  6. Step 6: Final answer
    x = 122,775,346.80

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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.