Home / 145,384,363.38-200,631,703.11-79,305,155.29

Finding the Fourth Proportional to 145,384,363.38, 200,631,703.11 and 79,305,155.29

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Solution

The fourth proportional to 145,384,363.38, 200,631,703.11 and 79,305,155.29 is: 109,441,813.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,384,363.38 : 200,631,703.11 = 79,305,155.29 : x
  2. Step 2: Convert to fraction form
    145,384,363.38/200,631,703.11 = 79,305,155.29/x
  3. Step 3: Cross multiply
    145,384,363.38x = 200,631,703.11 × 79,305,155.29
  4. Step 4: Simplify right side
    145,384,363.38x = 15,911,128,371,189,122
  5. Step 5: Solve for x
    x = 15,911,128,371,189,122/145,384,363.38
  6. Step 6: Final answer
    x = 109,441,813.42

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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.