Home / 12,019,019.40-18,028,529.10-3,499,633.80

Finding the Fourth Proportional to 12,019,019.40, 18,028,529.10 and 3,499,633.80

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Solution

The fourth proportional to 12,019,019.40, 18,028,529.10 and 3,499,633.80 is: 5,249,450.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,019,019.40 : 18,028,529.10 = 3,499,633.80 : x
  2. Step 2: Convert to fraction form
    12,019,019.40/18,028,529.10 = 3,499,633.80/x
  3. Step 3: Cross multiply
    12,019,019.40x = 18,028,529.10 × 3,499,633.80
  4. Step 4: Simplify right side
    12,019,019.40x = 63,093,249,802,643.58
  5. Step 5: Solve for x
    x = 63,093,249,802,643.58/12,019,019.40
  6. Step 6: Final answer
    x = 5,249,450.70

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Double scale
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Similar ratio
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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.