Home / 703,607,778.30-970,575,322.50-438,830,085.36

Finding the Fourth Proportional to 703,607,778.30, 970,575,322.50 and 438,830,085.36

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Solution

The fourth proportional to 703,607,778.30, 970,575,322.50 and 438,830,085.36 is: 605,333,915.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,607,778.30 : 970,575,322.50 = 438,830,085.36 : x
  2. Step 2: Convert to fraction form
    703,607,778.30/970,575,322.50 = 438,830,085.36/x
  3. Step 3: Cross multiply
    703,607,778.30x = 970,575,322.50 × 438,830,085.36
  4. Step 4: Simplify right side
    703,607,778.30x = 425,917,651,620,984,512
  5. Step 5: Solve for x
    x = 425,917,651,620,984,512/703,607,778.30
  6. Step 6: Final answer
    x = 605,333,915.79

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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.