Home / 12,481,636.40-18,722,454.60-7,358,807.60

Finding the Fourth Proportional to 12,481,636.40, 18,722,454.60 and 7,358,807.60

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Solution

The fourth proportional to 12,481,636.40, 18,722,454.60 and 7,358,807.60 is: 11,038,211.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481,636.40 : 18,722,454.60 = 7,358,807.60 : x
  2. Step 2: Convert to fraction form
    12,481,636.40/18,722,454.60 = 7,358,807.60/x
  3. Step 3: Cross multiply
    12,481,636.40x = 18,722,454.60 × 7,358,807.60
  4. Step 4: Simplify right side
    12,481,636.40x = 137,774,941,201,134.97
  5. Step 5: Solve for x
    x = 137,774,941,201,134.97/12,481,636.40
  6. Step 6: Final answer
    x = 11,038,211.40

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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.