Home / 414,781,970.72-621,738,356.78-193,270,686.10

Finding the Fourth Proportional to 414,781,970.72, 621,738,356.78 and 193,270,686.10

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Solution

The fourth proportional to 414,781,970.72, 621,738,356.78 and 193,270,686.10 is: 289,703,524.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,781,970.72 : 621,738,356.78 = 193,270,686.10 : x
  2. Step 2: Convert to fraction form
    414,781,970.72/621,738,356.78 = 193,270,686.10/x
  3. Step 3: Cross multiply
    414,781,970.72x = 621,738,356.78 × 193,270,686.10
  4. Step 4: Simplify right side
    414,781,970.72x = 120,163,798,788,486,016
  5. Step 5: Solve for x
    x = 120,163,798,788,486,016/414,781,970.72
  6. Step 6: Final answer
    x = 289,703,524.44

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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.