Home / 30,434,457.95-41,995,067.81-18,507,186.89

Finding the Fourth Proportional to 30,434,457.95, 41,995,067.81 and 18,507,186.89

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Solution

The fourth proportional to 30,434,457.95, 41,995,067.81 and 18,507,186.89 is: 25,537,191.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,434,457.95 : 41,995,067.81 = 18,507,186.89 : x
  2. Step 2: Convert to fraction form
    30,434,457.95/41,995,067.81 = 18,507,186.89/x
  3. Step 3: Cross multiply
    30,434,457.95x = 41,995,067.81 × 18,507,186.89
  4. Step 4: Simplify right side
    30,434,457.95x = 777,210,568,207,917.75
  5. Step 5: Solve for x
    x = 777,210,568,207,917.75/30,434,457.95
  6. Step 6: Final answer
    x = 25,537,191.09

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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.