Home / 280,293,138.48-383,995,213.92-269,813,428.16

Finding the Fourth Proportional to 280,293,138.48, 383,995,213.92 and 269,813,428.16

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Solution

The fourth proportional to 280,293,138.48, 383,995,213.92 and 269,813,428.16 is: 369,638,249.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,293,138.48 : 383,995,213.92 = 269,813,428.16 : x
  2. Step 2: Convert to fraction form
    280,293,138.48/383,995,213.92 = 269,813,428.16/x
  3. Step 3: Cross multiply
    280,293,138.48x = 383,995,213.92 × 269,813,428.16
  4. Step 4: Simplify right side
    280,293,138.48x = 103,607,065,064,787,760
  5. Step 5: Solve for x
    x = 103,607,065,064,787,760/280,293,138.48
  6. Step 6: Final answer
    x = 369,638,249.54

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.