Home / 3,138,666.60-4,707,999.90-2,430,078.60

Finding the Fourth Proportional to 3,138,666.60, 4,707,999.90 and 2,430,078.60

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Solution

The fourth proportional to 3,138,666.60, 4,707,999.90 and 2,430,078.60 is: 3,645,117.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138,666.60 : 4,707,999.90 = 2,430,078.60 : x
  2. Step 2: Convert to fraction form
    3,138,666.60/4,707,999.90 = 2,430,078.60/x
  3. Step 3: Cross multiply
    3,138,666.60x = 4,707,999.90 × 2,430,078.60
  4. Step 4: Simplify right side
    3,138,666.60x = 11,440,809,805,792.14
  5. Step 5: Solve for x
    x = 11,440,809,805,792.14/3,138,666.60
  6. Step 6: Final answer
    x = 3,645,117.90

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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.