Home / 12,310,371.45-16,990,422.15-7,156,722.36

Finding the Fourth Proportional to 12,310,371.45, 16,990,422.15 and 7,156,722.36

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Solution

The fourth proportional to 12,310,371.45, 16,990,422.15 and 7,156,722.36 is: 9,877,503.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,310,371.45 : 16,990,422.15 = 7,156,722.36 : x
  2. Step 2: Convert to fraction form
    12,310,371.45/16,990,422.15 = 7,156,722.36/x
  3. Step 3: Cross multiply
    12,310,371.45x = 16,990,422.15 × 7,156,722.36
  4. Step 4: Simplify right side
    12,310,371.45x = 121,595,734,106,744.27
  5. Step 5: Solve for x
    x = 121,595,734,106,744.27/12,310,371.45
  6. Step 6: Final answer
    x = 9,877,503.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.