Home / 7,172,718.90-9,897,902.56-3,953,454.90

Finding the Fourth Proportional to 7,172,718.90, 9,897,902.56 and 3,953,454.90

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Solution

The fourth proportional to 7,172,718.90, 9,897,902.56 and 3,953,454.90 is: 5,455,519.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,172,718.90 : 9,897,902.56 = 3,953,454.90 : x
  2. Step 2: Convert to fraction form
    7,172,718.90/9,897,902.56 = 3,953,454.90/x
  3. Step 3: Cross multiply
    7,172,718.90x = 9,897,902.56 × 3,953,454.90
  4. Step 4: Simplify right side
    7,172,718.90x = 39,130,911,375,554.55
  5. Step 5: Solve for x
    x = 39,130,911,375,554.55/7,172,718.90
  6. Step 6: Final answer
    x = 5,455,519.99

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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.