Home / 13,280,188.80-19,904,536.80-11,925,998.40

Finding the Fourth Proportional to 13,280,188.80, 19,904,536.80 and 11,925,998.40

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Solution

The fourth proportional to 13,280,188.80, 19,904,536.80 and 11,925,998.40 is: 17,874,856.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,280,188.80 : 19,904,536.80 = 11,925,998.40 : x
  2. Step 2: Convert to fraction form
    13,280,188.80/19,904,536.80 = 11,925,998.40/x
  3. Step 3: Cross multiply
    13,280,188.80x = 19,904,536.80 × 11,925,998.40
  4. Step 4: Simplify right side
    13,280,188.80x = 237,381,474,029,541.12
  5. Step 5: Solve for x
    x = 237,381,474,029,541.12/13,280,188.80
  6. Step 6: Final answer
    x = 17,874,856.87

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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.