Home / 7,237,314.19-9,987,667.10-3,929,747.82

Finding the Fourth Proportional to 7,237,314.19, 9,987,667.10 and 3,929,747.82

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Solution

The fourth proportional to 7,237,314.19, 9,987,667.10 and 3,929,747.82 is: 5,423,146.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,237,314.19 : 9,987,667.10 = 3,929,747.82 : x
  2. Step 2: Convert to fraction form
    7,237,314.19/9,987,667.10 = 3,929,747.82/x
  3. Step 3: Cross multiply
    7,237,314.19x = 9,987,667.10 × 3,929,747.82
  4. Step 4: Simplify right side
    7,237,314.19x = 39,249,013,013,110.72
  5. Step 5: Solve for x
    x = 39,249,013,013,110.72/7,237,314.19
  6. Step 6: Final answer
    x = 5,423,146.21

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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.