Home / 85,015,983.60-127,539,721.80-27,510,130.80

Finding the Fourth Proportional to 85,015,983.60, 127,539,721.80 and 27,510,130.80

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Solution

The fourth proportional to 85,015,983.60, 127,539,721.80 and 27,510,130.80 is: 41,270,291.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,015,983.60 : 127,539,721.80 = 27,510,130.80 : x
  2. Step 2: Convert to fraction form
    85,015,983.60/127,539,721.80 = 27,510,130.80/x
  3. Step 3: Cross multiply
    85,015,983.60x = 127,539,721.80 × 27,510,130.80
  4. Step 4: Simplify right side
    85,015,983.60x = 3,508,634,428,913,611.50
  5. Step 5: Solve for x
    x = 3,508,634,428,913,611.50/85,015,983.60
  6. Step 6: Final answer
    x = 41,270,291.54

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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.