Home / 12,453,553.60-18,680,330.40-7,974,577.60

Finding the Fourth Proportional to 12,453,553.60, 18,680,330.40 and 7,974,577.60

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Solution

The fourth proportional to 12,453,553.60, 18,680,330.40 and 7,974,577.60 is: 11,961,866.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,453,553.60 : 18,680,330.40 = 7,974,577.60 : x
  2. Step 2: Convert to fraction form
    12,453,553.60/18,680,330.40 = 7,974,577.60/x
  3. Step 3: Cross multiply
    12,453,553.60x = 18,680,330.40 × 7,974,577.60
  4. Step 4: Simplify right side
    12,453,553.60x = 148,967,744,368,439.03
  5. Step 5: Solve for x
    x = 148,967,744,368,439.03/12,453,553.60
  6. Step 6: Final answer
    x = 11,961,866.40

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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.