Home / 10,922,534-15,078,763.28-7,979,045.92

Finding the Fourth Proportional to 10,922,534, 15,078,763.28 and 7,979,045.92

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Solution

The fourth proportional to 10,922,534, 15,078,763.28 and 7,979,045.92 is: 11,015,222.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,922,534 : 15,078,763.28 = 7,979,045.92 : x
  2. Step 2: Convert to fraction form
    10,922,534/15,078,763.28 = 7,979,045.92/x
  3. Step 3: Cross multiply
    10,922,534x = 15,078,763.28 × 7,979,045.92
  4. Step 4: Simplify right side
    10,922,534x = 120,314,144,627,929.81
  5. Step 5: Solve for x
    x = 120,314,144,627,929.81/10,922,534
  6. Step 6: Final answer
    x = 11,015,222.72

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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.