Home / 10,368,021.80-15,552,032.70-7,172,258.60

Finding the Fourth Proportional to 10,368,021.80, 15,552,032.70 and 7,172,258.60

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Solution

The fourth proportional to 10,368,021.80, 15,552,032.70 and 7,172,258.60 is: 10,758,387.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,368,021.80 : 15,552,032.70 = 7,172,258.60 : x
  2. Step 2: Convert to fraction form
    10,368,021.80/15,552,032.70 = 7,172,258.60/x
  3. Step 3: Cross multiply
    10,368,021.80x = 15,552,032.70 × 7,172,258.60
  4. Step 4: Simplify right side
    10,368,021.80x = 111,543,200,280,056.20
  5. Step 5: Solve for x
    x = 111,543,200,280,056.20/10,368,021.80
  6. Step 6: Final answer
    x = 10,758,387.90

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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.