Home / 85,538,728.40-128,313,007.80-24,963,803.60

Finding the Fourth Proportional to 85,538,728.40, 128,313,007.80 and 24,963,803.60

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Solution

The fourth proportional to 85,538,728.40, 128,313,007.80 and 24,963,803.60 is: 37,447,139.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,538,728.40 : 128,313,007.80 = 24,963,803.60 : x
  2. Step 2: Convert to fraction form
    85,538,728.40/128,313,007.80 = 24,963,803.60/x
  3. Step 3: Cross multiply
    85,538,728.40x = 128,313,007.80 × 24,963,803.60
  4. Step 4: Simplify right side
    85,538,728.40x = 3,203,180,726,044,468
  5. Step 5: Solve for x
    x = 3,203,180,726,044,468/85,538,728.40
  6. Step 6: Final answer
    x = 37,447,139.86

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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.