Home / 320,379,353.11-480,587,528.73-123,643,787.23

Finding the Fourth Proportional to 320,379,353.11, 480,587,528.73 and 123,643,787.23

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Solution

The fourth proportional to 320,379,353.11, 480,587,528.73 and 123,643,787.23 is: 185,472,820.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,379,353.11 : 480,587,528.73 = 123,643,787.23 : x
  2. Step 2: Convert to fraction form
    320,379,353.11/480,587,528.73 = 123,643,787.23/x
  3. Step 3: Cross multiply
    320,379,353.11x = 480,587,528.73 × 123,643,787.23
  4. Step 4: Simplify right side
    320,379,353.11x = 59,421,662,145,280,696
  5. Step 5: Solve for x
    x = 59,421,662,145,280,696/320,379,353.11
  6. Step 6: Final answer
    x = 185,472,820.17

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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.