Home / 85,212,021.60-127,818,032.40-52,758,691.20

Finding the Fourth Proportional to 85,212,021.60, 127,818,032.40 and 52,758,691.20

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Solution

The fourth proportional to 85,212,021.60, 127,818,032.40 and 52,758,691.20 is: 79,138,036.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,212,021.60 : 127,818,032.40 = 52,758,691.20 : x
  2. Step 2: Convert to fraction form
    85,212,021.60/127,818,032.40 = 52,758,691.20/x
  3. Step 3: Cross multiply
    85,212,021.60x = 127,818,032.40 × 52,758,691.20
  4. Step 4: Simplify right side
    85,212,021.60x = 6,743,512,101,183,196
  5. Step 5: Solve for x
    x = 6,743,512,101,183,196/85,212,021.60
  6. Step 6: Final answer
    x = 79,138,036.80

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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.