Home / 7,135,439.48-9,846,978.70-3,872,282.39

Finding the Fourth Proportional to 7,135,439.48, 9,846,978.70 and 3,872,282.39

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Solution

The fourth proportional to 7,135,439.48, 9,846,978.70 and 3,872,282.39 is: 5,343,788.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,135,439.48 : 9,846,978.70 = 3,872,282.39 : x
  2. Step 2: Convert to fraction form
    7,135,439.48/9,846,978.70 = 3,872,282.39/x
  3. Step 3: Cross multiply
    7,135,439.48x = 9,846,978.70 × 3,872,282.39
  4. Step 4: Simplify right side
    7,135,439.48x = 38,130,282,214,715.09
  5. Step 5: Solve for x
    x = 38,130,282,214,715.09/7,135,439.48
  6. Step 6: Final answer
    x = 5,343,788.89

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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.