Home / 18,220,438.80-27,299,165.40-11,827,400.40

Finding the Fourth Proportional to 18,220,438.80, 27,299,165.40 and 11,827,400.40

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Solution

The fourth proportional to 18,220,438.80, 27,299,165.40 and 11,827,400.40 is: 17,720,657.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,220,438.80 : 27,299,165.40 = 11,827,400.40 : x
  2. Step 2: Convert to fraction form
    18,220,438.80/27,299,165.40 = 11,827,400.40/x
  3. Step 3: Cross multiply
    18,220,438.80x = 27,299,165.40 × 11,827,400.40
  4. Step 4: Simplify right side
    18,220,438.80x = 322,878,159,771,626.12
  5. Step 5: Solve for x
    x = 322,878,159,771,626.12/18,220,438.80
  6. Step 6: Final answer
    x = 17,720,657.74

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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.