Home / 501,950,022.32-692,711,856-278,930,871.20

Finding the Fourth Proportional to 501,950,022.32, 692,711,856 and 278,930,871.20

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Solution

The fourth proportional to 501,950,022.32, 692,711,856 and 278,930,871.20 is: 384,936,174.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,950,022.32 : 692,711,856 = 278,930,871.20 : x
  2. Step 2: Convert to fraction form
    501,950,022.32/692,711,856 = 278,930,871.20/x
  3. Step 3: Cross multiply
    501,950,022.32x = 692,711,856 × 278,930,871.20
  4. Step 4: Simplify right side
    501,950,022.32x = 193,218,721,484,648,928
  5. Step 5: Solve for x
    x = 193,218,721,484,648,928/501,950,022.32
  6. Step 6: Final answer
    x = 384,936,174.70

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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.