Home / 7,156,805.79-9,876,255.84-3,974,126.34

Finding the Fourth Proportional to 7,156,805.79, 9,876,255.84 and 3,974,126.34

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Solution

The fourth proportional to 7,156,805.79, 9,876,255.84 and 3,974,126.34 is: 5,484,218.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,156,805.79 : 9,876,255.84 = 3,974,126.34 : x
  2. Step 2: Convert to fraction form
    7,156,805.79/9,876,255.84 = 3,974,126.34/x
  3. Step 3: Cross multiply
    7,156,805.79x = 9,876,255.84 × 3,974,126.34
  4. Step 4: Simplify right side
    7,156,805.79x = 39,249,488,474,322.82
  5. Step 5: Solve for x
    x = 39,249,488,474,322.82/7,156,805.79
  6. Step 6: Final answer
    x = 5,484,218.75

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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.