Home / 7,115,897.90-9,819,926.12-3,852,712.20

Finding the Fourth Proportional to 7,115,897.90, 9,819,926.12 and 3,852,712.20

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Solution

The fourth proportional to 7,115,897.90, 9,819,926.12 and 3,852,712.20 is: 5,316,735.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,115,897.90 : 9,819,926.12 = 3,852,712.20 : x
  2. Step 2: Convert to fraction form
    7,115,897.90/9,819,926.12 = 3,852,712.20/x
  3. Step 3: Cross multiply
    7,115,897.90x = 9,819,926.12 × 3,852,712.20
  4. Step 4: Simplify right side
    7,115,897.90x = 37,833,349,165,622.66
  5. Step 5: Solve for x
    x = 37,833,349,165,622.66/7,115,897.90
  6. Step 6: Final answer
    x = 5,316,735.81

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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.