Home / 518,612,223.06-715,690,419.32-283,657,859.50

Finding the Fourth Proportional to 518,612,223.06, 715,690,419.32 and 283,657,859.50

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Solution

The fourth proportional to 518,612,223.06, 715,690,419.32 and 283,657,859.50 is: 391,450,882.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,612,223.06 : 715,690,419.32 = 283,657,859.50 : x
  2. Step 2: Convert to fraction form
    518,612,223.06/715,690,419.32 = 283,657,859.50/x
  3. Step 3: Cross multiply
    518,612,223.06x = 715,690,419.32 × 283,657,859.50
  4. Step 4: Simplify right side
    518,612,223.06x = 203,011,212,408,968,672
  5. Step 5: Solve for x
    x = 203,011,212,408,968,672/518,612,223.06
  6. Step 6: Final answer
    x = 391,450,882.53

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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.