Home / 523,297,309.11-722,117,748.38-288,334,820.85

Finding the Fourth Proportional to 523,297,309.11, 722,117,748.38 and 288,334,820.85

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Solution

The fourth proportional to 523,297,309.11, 722,117,748.38 and 288,334,820.85 is: 397,884,124.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,297,309.11 : 722,117,748.38 = 288,334,820.85 : x
  2. Step 2: Convert to fraction form
    523,297,309.11/722,117,748.38 = 288,334,820.85/x
  3. Step 3: Cross multiply
    523,297,309.11x = 722,117,748.38 × 288,334,820.85
  4. Step 4: Simplify right side
    523,297,309.11x = 208,211,691,609,232,160
  5. Step 5: Solve for x
    x = 208,211,691,609,232,160/523,297,309.11
  6. Step 6: Final answer
    x = 397,884,124.35

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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.