Home / 7,129,971.40-10,690,233.90-3,936,627.40

Finding the Fourth Proportional to 7,129,971.40, 10,690,233.90 and 3,936,627.40

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Solution

The fourth proportional to 7,129,971.40, 10,690,233.90 and 3,936,627.40 is: 5,902,333.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,129,971.40 : 10,690,233.90 = 3,936,627.40 : x
  2. Step 2: Convert to fraction form
    7,129,971.40/10,690,233.90 = 3,936,627.40/x
  3. Step 3: Cross multiply
    7,129,971.40x = 10,690,233.90 × 3,936,627.40
  4. Step 4: Simplify right side
    7,129,971.40x = 42,083,467,683,148.86
  5. Step 5: Solve for x
    x = 42,083,467,683,148.86/7,129,971.40
  6. Step 6: Final answer
    x = 5,902,333.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.