Home / 319,262,571,560.86-478,895,099,786.40-77,239,293,378.32

Finding the Fourth Proportional to 319,262,571,560.86, 478,895,099,786.40 and 77,239,293,378.32

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Solution

The fourth proportional to 319,262,571,560.86, 478,895,099,786.40 and 77,239,293,378.32 is: 115,859,240,652.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,262,571,560.86 : 478,895,099,786.40 = 77,239,293,378.32 : x
  2. Step 2: Convert to fraction form
    319,262,571,560.86/478,895,099,786.40 = 77,239,293,378.32/x
  3. Step 3: Cross multiply
    319,262,571,560.86x = 478,895,099,786.40 × 77,239,293,378.32
  4. Step 4: Simplify right side
    319,262,571,560.86x = 36,989,519,109,841,586,487,296
  5. Step 5: Solve for x
    x = 36,989,519,109,841,586,487,296/319,262,571,560.86
  6. Step 6: Final answer
    x = 115,859,240,652.61

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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.