Home / 1,382,910,722.52-1,907,210,715.27-980,227,986.11

Finding the Fourth Proportional to 1,382,910,722.52, 1,907,210,715.27 and 980,227,986.11

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Solution

The fourth proportional to 1,382,910,722.52, 1,907,210,715.27 and 980,227,986.11 is: 1,351,859,731.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,910,722.52 : 1,907,210,715.27 = 980,227,986.11 : x
  2. Step 2: Convert to fraction form
    1,382,910,722.52/1,907,210,715.27 = 980,227,986.11/x
  3. Step 3: Cross multiply
    1,382,910,722.52x = 1,907,210,715.27 × 980,227,986.11
  4. Step 4: Simplify right side
    1,382,910,722.52x = 1,869,501,318,510,415,872
  5. Step 5: Solve for x
    x = 1,869,501,318,510,415,872/1,382,910,722.52
  6. Step 6: Final answer
    x = 1,351,859,731.85

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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.