Home / 338,062,945.40-507,472,331.70-261,724,398.20

Finding the Fourth Proportional to 338,062,945.40, 507,472,331.70 and 261,724,398.20

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Solution

The fourth proportional to 338,062,945.40, 507,472,331.70 and 261,724,398.20 is: 392,879,173.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,062,945.40 : 507,472,331.70 = 261,724,398.20 : x
  2. Step 2: Convert to fraction form
    338,062,945.40/507,472,331.70 = 261,724,398.20/x
  3. Step 3: Cross multiply
    338,062,945.40x = 507,472,331.70 × 261,724,398.20
  4. Step 4: Simplify right side
    338,062,945.40x = 132,817,890,617,333,280
  5. Step 5: Solve for x
    x = 132,817,890,617,333,280/338,062,945.40
  6. Step 6: Final answer
    x = 392,879,173.61

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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.