Home / 707,904,649.12-976,858,531.04-394,625,005.60

Finding the Fourth Proportional to 707,904,649.12, 976,858,531.04 and 394,625,005.60

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Solution

The fourth proportional to 707,904,649.12, 976,858,531.04 and 394,625,005.60 is: 544,554,699.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,904,649.12 : 976,858,531.04 = 394,625,005.60 : x
  2. Step 2: Convert to fraction form
    707,904,649.12/976,858,531.04 = 394,625,005.60/x
  3. Step 3: Cross multiply
    707,904,649.12x = 976,858,531.04 × 394,625,005.60
  4. Step 4: Simplify right side
    707,904,649.12x = 385,492,803,282,067,776
  5. Step 5: Solve for x
    x = 385,492,803,282,067,776/707,904,649.12
  6. Step 6: Final answer
    x = 544,554,699.23

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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.