Home / 7,187,871.48-9,919,664.54-3,924,989.15

Finding the Fourth Proportional to 7,187,871.48, 9,919,664.54 and 3,924,989.15

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Solution

The fourth proportional to 7,187,871.48, 9,919,664.54 and 3,924,989.15 is: 5,416,704.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,187,871.48 : 9,919,664.54 = 3,924,989.15 : x
  2. Step 2: Convert to fraction form
    7,187,871.48/9,919,664.54 = 3,924,989.15/x
  3. Step 3: Cross multiply
    7,187,871.48x = 9,919,664.54 × 3,924,989.15
  4. Step 4: Simplify right side
    7,187,871.48x = 38,934,575,621,916.48
  5. Step 5: Solve for x
    x = 38,934,575,621,916.48/7,187,871.48
  6. Step 6: Final answer
    x = 5,416,704.48

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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.