Home / 7,237,306.43-9,987,656.40-3,929,740.07

Finding the Fourth Proportional to 7,237,306.43, 9,987,656.40 and 3,929,740.07

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Solution

The fourth proportional to 7,237,306.43, 9,987,656.40 and 3,929,740.07 is: 5,423,135.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,237,306.43 : 9,987,656.40 = 3,929,740.07 : x
  2. Step 2: Convert to fraction form
    7,237,306.43/9,987,656.40 = 3,929,740.07/x
  3. Step 3: Cross multiply
    7,237,306.43x = 9,987,656.40 × 3,929,740.07
  4. Step 4: Simplify right side
    7,237,306.43x = 39,248,893,571,172.11
  5. Step 5: Solve for x
    x = 39,248,893,571,172.11/7,237,306.43
  6. Step 6: Final answer
    x = 5,423,135.52

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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.