Home / 12,528,884.12-18,799,362.32-6,463,895.72

Finding the Fourth Proportional to 12,528,884.12, 18,799,362.32 and 6,463,895.72

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Solution

The fourth proportional to 12,528,884.12, 18,799,362.32 and 6,463,895.72 is: 9,698,957.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528,884.12 : 18,799,362.32 = 6,463,895.72 : x
  2. Step 2: Convert to fraction form
    12,528,884.12/18,799,362.32 = 6,463,895.72/x
  3. Step 3: Cross multiply
    12,528,884.12x = 18,799,362.32 × 6,463,895.72
  4. Step 4: Simplify right side
    12,528,884.12x = 121,517,117,512,660.98
  5. Step 5: Solve for x
    x = 121,517,117,512,660.98/12,528,884.12
  6. Step 6: Final answer
    x = 9,698,957.74

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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.