Home / 381,678,123.44-571,987,508.40-173,908,773.20

Finding the Fourth Proportional to 381,678,123.44, 571,987,508.40 and 173,908,773.20

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Solution

The fourth proportional to 381,678,123.44, 571,987,508.40 and 173,908,773.20 is: 260,621,816.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,678,123.44 : 571,987,508.40 = 173,908,773.20 : x
  2. Step 2: Convert to fraction form
    381,678,123.44/571,987,508.40 = 173,908,773.20/x
  3. Step 3: Cross multiply
    381,678,123.44x = 571,987,508.40 × 173,908,773.20
  4. Step 4: Simplify right side
    381,678,123.44x = 99,473,645,871,568,688
  5. Step 5: Solve for x
    x = 99,473,645,871,568,688/381,678,123.44
  6. Step 6: Final answer
    x = 260,621,816.56

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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.