Home / 12,960,015.40-19,424,471.10-8,916,495.40

Finding the Fourth Proportional to 12,960,015.40, 19,424,471.10 and 8,916,495.40

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Solution

The fourth proportional to 12,960,015.40, 19,424,471.10 and 8,916,495.40 is: 13,364,043.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,960,015.40 : 19,424,471.10 = 8,916,495.40 : x
  2. Step 2: Convert to fraction form
    12,960,015.40/19,424,471.10 = 8,916,495.40/x
  3. Step 3: Cross multiply
    12,960,015.40x = 19,424,471.10 × 8,916,495.40
  4. Step 4: Simplify right side
    12,960,015.40x = 173,198,207,210,582.97
  5. Step 5: Solve for x
    x = 173,198,207,210,582.97/12,960,015.40
  6. Step 6: Final answer
    x = 13,364,043.32

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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.