Home / 7,212,142.15-9,952,719.63-3,948,897.58

Finding the Fourth Proportional to 7,212,142.15, 9,952,719.63 and 3,948,897.58

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Solution

The fourth proportional to 7,212,142.15, 9,952,719.63 and 3,948,897.58 is: 5,449,458.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,212,142.15 : 9,952,719.63 = 3,948,897.58 : x
  2. Step 2: Convert to fraction form
    7,212,142.15/9,952,719.63 = 3,948,897.58/x
  3. Step 3: Cross multiply
    7,212,142.15x = 9,952,719.63 × 3,948,897.58
  4. Step 4: Simplify right side
    7,212,142.15x = 39,302,270,461,325.50
  5. Step 5: Solve for x
    x = 39,302,270,461,325.50/7,212,142.15
  6. Step 6: Final answer
    x = 5,449,458.66

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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.