Home / 13,621,842.87-20,444,569.73-7,149,490.08

Finding the Fourth Proportional to 13,621,842.87, 20,444,569.73 and 7,149,490.08

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Solution

The fourth proportional to 13,621,842.87, 20,444,569.73 and 7,149,490.08 is: 10,730,431.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,621,842.87 : 20,444,569.73 = 7,149,490.08 : x
  2. Step 2: Convert to fraction form
    13,621,842.87/20,444,569.73 = 7,149,490.08/x
  3. Step 3: Cross multiply
    13,621,842.87x = 20,444,569.73 × 7,149,490.08
  4. Step 4: Simplify right side
    13,621,842.87x = 146,168,248,388,899.28
  5. Step 5: Solve for x
    x = 146,168,248,388,899.28/13,621,842.87
  6. Step 6: Final answer
    x = 10,730,431.25

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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.