Home / 13,290,816.96-18,341,335.44-7,179,248.16

Finding the Fourth Proportional to 13,290,816.96, 18,341,335.44 and 7,179,248.16

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Solution

The fourth proportional to 13,290,816.96, 18,341,335.44 and 7,179,248.16 is: 9,907,366.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,290,816.96 : 18,341,335.44 = 7,179,248.16 : x
  2. Step 2: Convert to fraction form
    13,290,816.96/18,341,335.44 = 7,179,248.16/x
  3. Step 3: Cross multiply
    13,290,816.96x = 18,341,335.44 × 7,179,248.16
  4. Step 4: Simplify right side
    13,290,816.96x = 131,676,998,709,562.80
  5. Step 5: Solve for x
    x = 131,676,998,709,562.80/13,290,816.96
  6. Step 6: Final answer
    x = 9,907,366.80

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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.