Home / 512,379,223.08-706,554,856.80-438,285,077.28

Finding the Fourth Proportional to 512,379,223.08, 706,554,856.80 and 438,285,077.28

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Solution

The fourth proportional to 512,379,223.08, 706,554,856.80 and 438,285,077.28 is: 604,381,356.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,379,223.08 : 706,554,856.80 = 438,285,077.28 : x
  2. Step 2: Convert to fraction form
    512,379,223.08/706,554,856.80 = 438,285,077.28/x
  3. Step 3: Cross multiply
    512,379,223.08x = 706,554,856.80 × 438,285,077.28
  4. Step 4: Simplify right side
    512,379,223.08x = 309,672,450,015,147,264
  5. Step 5: Solve for x
    x = 309,672,450,015,147,264/512,379,223.08
  6. Step 6: Final answer
    x = 604,381,356.75

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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.