Home / 12,457,665.60-18,689,122.80-5,265,497.40

Finding the Fourth Proportional to 12,457,665.60, 18,689,122.80 and 5,265,497.40

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Solution

The fourth proportional to 12,457,665.60, 18,689,122.80 and 5,265,497.40 is: 7,899,355.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,457,665.60 : 18,689,122.80 = 5,265,497.40 : x
  2. Step 2: Convert to fraction form
    12,457,665.60/18,689,122.80 = 5,265,497.40/x
  3. Step 3: Cross multiply
    12,457,665.60x = 18,689,122.80 × 5,265,497.40
  4. Step 4: Simplify right side
    12,457,665.60x = 98,407,527,511,680.73
  5. Step 5: Solve for x
    x = 98,407,527,511,680.73/12,457,665.60
  6. Step 6: Final answer
    x = 7,899,355.36

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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.