Home / 12,292,605.20-18,438,907.80-5,915,313.20

Finding the Fourth Proportional to 12,292,605.20, 18,438,907.80 and 5,915,313.20

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Solution

The fourth proportional to 12,292,605.20, 18,438,907.80 and 5,915,313.20 is: 8,872,969.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,292,605.20 : 18,438,907.80 = 5,915,313.20 : x
  2. Step 2: Convert to fraction form
    12,292,605.20/18,438,907.80 = 5,915,313.20/x
  3. Step 3: Cross multiply
    12,292,605.20x = 18,438,907.80 × 5,915,313.20
  4. Step 4: Simplify right side
    12,292,605.20x = 109,071,914,702,922.97
  5. Step 5: Solve for x
    x = 109,071,914,702,922.97/12,292,605.20
  6. Step 6: Final answer
    x = 8,872,969.80

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1.5x scale

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.