Home / 13,420,133.74-18,520,029.84-7,460,100.13

Finding the Fourth Proportional to 13,420,133.74, 18,520,029.84 and 7,460,100.13

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Solution

The fourth proportional to 13,420,133.74, 18,520,029.84 and 7,460,100.13 is: 10,295,074.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,420,133.74 : 18,520,029.84 = 7,460,100.13 : x
  2. Step 2: Convert to fraction form
    13,420,133.74/18,520,029.84 = 7,460,100.13/x
  3. Step 3: Cross multiply
    13,420,133.74x = 18,520,029.84 × 7,460,100.13
  4. Step 4: Simplify right side
    13,420,133.74x = 138,161,276,981,300.66
  5. Step 5: Solve for x
    x = 138,161,276,981,300.66/13,420,133.74
  6. Step 6: Final answer
    x = 10,295,074.53

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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.