Home / 770,311,678.87-1,062,940,435.91-431,238,721.48

Finding the Fourth Proportional to 770,311,678.87, 1,062,940,435.91 and 431,238,721.48

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Solution

The fourth proportional to 770,311,678.87, 1,062,940,435.91 and 431,238,721.48 is: 595,059,230.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,311,678.87 : 1,062,940,435.91 = 431,238,721.48 : x
  2. Step 2: Convert to fraction form
    770,311,678.87/1,062,940,435.91 = 431,238,721.48/x
  3. Step 3: Cross multiply
    770,311,678.87x = 1,062,940,435.91 × 431,238,721.48
  4. Step 4: Simplify right side
    770,311,678.87x = 458,381,074,586,408,768
  5. Step 5: Solve for x
    x = 458,381,074,586,408,768/770,311,678.87
  6. Step 6: Final answer
    x = 595,059,230.13

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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.