Home / 12,457,785.60-18,689,302.80-5,265,617.40

Finding the Fourth Proportional to 12,457,785.60, 18,689,302.80 and 5,265,617.40

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Solution

The fourth proportional to 12,457,785.60, 18,689,302.80 and 5,265,617.40 is: 7,899,535.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,457,785.60 : 18,689,302.80 = 5,265,617.40 : x
  2. Step 2: Convert to fraction form
    12,457,785.60/18,689,302.80 = 5,265,617.40/x
  3. Step 3: Cross multiply
    12,457,785.60x = 18,689,302.80 × 5,265,617.40
  4. Step 4: Simplify right side
    12,457,785.60x = 98,410,718,017,548.73
  5. Step 5: Solve for x
    x = 98,410,718,017,548.73/12,457,785.60
  6. Step 6: Final answer
    x = 7,899,535.37

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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.