Home / 13,621,084.08-18,797,090.04-7,820,239.92

Finding the Fourth Proportional to 13,621,084.08, 18,797,090.04 and 7,820,239.92

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Solution

The fourth proportional to 13,621,084.08, 18,797,090.04 and 7,820,239.92 is: 10,791,927.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,621,084.08 : 18,797,090.04 = 7,820,239.92 : x
  2. Step 2: Convert to fraction form
    13,621,084.08/18,797,090.04 = 7,820,239.92/x
  3. Step 3: Cross multiply
    13,621,084.08x = 18,797,090.04 × 7,820,239.92
  4. Step 4: Simplify right side
    13,621,084.08x = 146,997,753,910,642.38
  5. Step 5: Solve for x
    x = 146,997,753,910,642.38/13,621,084.08
  6. Step 6: Final answer
    x = 10,791,927.65

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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.