Home / 687,945,637.88-1,032,362,408.10-251,209,755.80

Finding the Fourth Proportional to 687,945,637.88, 1,032,362,408.10 and 251,209,755.80

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Solution

The fourth proportional to 687,945,637.88, 1,032,362,408.10 and 251,209,755.80 is: 376,976,746.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,945,637.88 : 1,032,362,408.10 = 251,209,755.80 : x
  2. Step 2: Convert to fraction form
    687,945,637.88/1,032,362,408.10 = 251,209,755.80/x
  3. Step 3: Cross multiply
    687,945,637.88x = 1,032,362,408.10 × 251,209,755.80
  4. Step 4: Simplify right side
    687,945,637.88x = 259,339,508,435,900,960
  5. Step 5: Solve for x
    x = 259,339,508,435,900,960/687,945,637.88
  6. Step 6: Final answer
    x = 376,976,746.64

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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.