Home / 12,257,999.90-18,386,999.85-10,368,431.90

Finding the Fourth Proportional to 12,257,999.90, 18,386,999.85 and 10,368,431.90

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Solution

The fourth proportional to 12,257,999.90, 18,386,999.85 and 10,368,431.90 is: 15,552,647.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,257,999.90 : 18,386,999.85 = 10,368,431.90 : x
  2. Step 2: Convert to fraction form
    12,257,999.90/18,386,999.85 = 10,368,431.90/x
  3. Step 3: Cross multiply
    12,257,999.90x = 18,386,999.85 × 10,368,431.90
  4. Step 4: Simplify right side
    12,257,999.90x = 190,644,355,790,035.25
  5. Step 5: Solve for x
    x = 190,644,355,790,035.25/12,257,999.90
  6. Step 6: Final answer
    x = 15,552,647.85

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1.5x scale

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.