Home / 10,979,619.84-16,451,218.56-7,768,830.72

Finding the Fourth Proportional to 10,979,619.84, 16,451,218.56 and 7,768,830.72

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Solution

The fourth proportional to 10,979,619.84, 16,451,218.56 and 7,768,830.72 is: 11,640,360.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,979,619.84 : 16,451,218.56 = 7,768,830.72 : x
  2. Step 2: Convert to fraction form
    10,979,619.84/16,451,218.56 = 7,768,830.72/x
  3. Step 3: Cross multiply
    10,979,619.84x = 16,451,218.56 × 7,768,830.72
  4. Step 4: Simplify right side
    10,979,619.84x = 127,806,732,130,362.16
  5. Step 5: Solve for x
    x = 127,806,732,130,362.16/10,979,619.84
  6. Step 6: Final answer
    x = 11,640,360.41

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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.