Home / 13,300,391.04-18,354,542.40-7,188,800.64

Finding the Fourth Proportional to 13,300,391.04, 18,354,542.40 and 7,188,800.64

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Solution

The fourth proportional to 13,300,391.04, 18,354,542.40 and 7,188,800.64 is: 9,920,546.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,300,391.04 : 18,354,542.40 = 7,188,800.64 : x
  2. Step 2: Convert to fraction form
    13,300,391.04/18,354,542.40 = 7,188,800.64/x
  3. Step 3: Cross multiply
    13,300,391.04x = 18,354,542.40 × 7,188,800.64
  4. Step 4: Simplify right side
    13,300,391.04x = 131,947,146,152,027.12
  5. Step 5: Solve for x
    x = 131,947,146,152,027.12/13,300,391.04
  6. Step 6: Final answer
    x = 9,920,546.38

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1.5x scale

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.