Home / 523,297,138.77-722,117,513.30-288,334,650.51

Finding the Fourth Proportional to 523,297,138.77, 722,117,513.30 and 288,334,650.51

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Solution

The fourth proportional to 523,297,138.77, 722,117,513.30 and 288,334,650.51 is: 397,883,889.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,297,138.77 : 722,117,513.30 = 288,334,650.51 : x
  2. Step 2: Convert to fraction form
    523,297,138.77/722,117,513.30 = 288,334,650.51/x
  3. Step 3: Cross multiply
    523,297,138.77x = 722,117,513.30 × 288,334,650.51
  4. Step 4: Simplify right side
    523,297,138.77x = 208,211,500,824,505,760
  5. Step 5: Solve for x
    x = 208,211,500,824,505,760/523,297,138.77
  6. Step 6: Final answer
    x = 397,883,889.28

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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.