Home / 98,772,005.20-148,158,007.80-85,167,115.60

Finding the Fourth Proportional to 98,772,005.20, 148,158,007.80 and 85,167,115.60

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Solution

The fourth proportional to 98,772,005.20, 148,158,007.80 and 85,167,115.60 is: 127,750,673.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,772,005.20 : 148,158,007.80 = 85,167,115.60 : x
  2. Step 2: Convert to fraction form
    98,772,005.20/148,158,007.80 = 85,167,115.60/x
  3. Step 3: Cross multiply
    98,772,005.20x = 148,158,007.80 × 85,167,115.60
  4. Step 4: Simplify right side
    98,772,005.20x = 12,618,190,177,368,302
  5. Step 5: Solve for x
    x = 12,618,190,177,368,302/98,772,005.20
  6. Step 6: Final answer
    x = 127,750,673.40

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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.