Home / 30,992,187.87-42,757,667.24-19,385,341.47

Finding the Fourth Proportional to 30,992,187.87, 42,757,667.24 and 19,385,341.47

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Solution

The fourth proportional to 30,992,187.87, 42,757,667.24 and 19,385,341.47 is: 26,744,545.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,992,187.87 : 42,757,667.24 = 19,385,341.47 : x
  2. Step 2: Convert to fraction form
    30,992,187.87/42,757,667.24 = 19,385,341.47/x
  3. Step 3: Cross multiply
    30,992,187.87x = 42,757,667.24 × 19,385,341.47
  4. Step 4: Simplify right side
    30,992,187.87x = 828,871,979,811,105.62
  5. Step 5: Solve for x
    x = 828,871,979,811,105.62/30,992,187.87
  6. Step 6: Final answer
    x = 26,744,545.54

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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.