Home / 18,210,215.40-27,307,449.90-9,108,796.20

Finding the Fourth Proportional to 18,210,215.40, 27,307,449.90 and 9,108,796.20

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Solution

The fourth proportional to 18,210,215.40, 27,307,449.90 and 9,108,796.20 is: 13,659,256.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,210,215.40 : 27,307,449.90 = 9,108,796.20 : x
  2. Step 2: Convert to fraction form
    18,210,215.40/27,307,449.90 = 9,108,796.20/x
  3. Step 3: Cross multiply
    18,210,215.40x = 27,307,449.90 × 9,108,796.20
  4. Step 4: Simplify right side
    18,210,215.40x = 248,737,995,880,810.34
  5. Step 5: Solve for x
    x = 248,737,995,880,810.34/18,210,215.40
  6. Step 6: Final answer
    x = 13,659,256.11

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1.5x scale

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.