Home / 785,679,956.43-1,084,264,514.58-428,467,223.13

Finding the Fourth Proportional to 785,679,956.43, 1,084,264,514.58 and 428,467,223.13

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Solution

The fourth proportional to 785,679,956.43, 1,084,264,514.58 and 428,467,223.13 is: 591,299,042.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,679,956.43 : 1,084,264,514.58 = 428,467,223.13 : x
  2. Step 2: Convert to fraction form
    785,679,956.43/1,084,264,514.58 = 428,467,223.13/x
  3. Step 3: Cross multiply
    785,679,956.43x = 1,084,264,514.58 × 428,467,223.13
  4. Step 4: Simplify right side
    785,679,956.43x = 464,571,805,698,052,224
  5. Step 5: Solve for x
    x = 464,571,805,698,052,224/785,679,956.43
  6. Step 6: Final answer
    x = 591,299,042.18

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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.