Home / 12,472,717.20-18,728,321.40-6,804,013.20

Finding the Fourth Proportional to 12,472,717.20, 18,728,321.40 and 6,804,013.20

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Solution

The fourth proportional to 12,472,717.20, 18,728,321.40 and 6,804,013.20 is: 10,216,518.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,472,717.20 : 18,728,321.40 = 6,804,013.20 : x
  2. Step 2: Convert to fraction form
    12,472,717.20/18,728,321.40 = 6,804,013.20/x
  3. Step 3: Cross multiply
    12,472,717.20x = 18,728,321.40 × 6,804,013.20
  4. Step 4: Simplify right side
    12,472,717.20x = 127,427,746,019,442.47
  5. Step 5: Solve for x
    x = 127,427,746,019,442.47/12,472,717.20
  6. Step 6: Final answer
    x = 10,216,518.50

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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.