Home / 523,297,137.77-722,117,511.93-288,334,649.51

Finding the Fourth Proportional to 523,297,137.77, 722,117,511.93 and 288,334,649.51

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Solution

The fourth proportional to 523,297,137.77, 722,117,511.93 and 288,334,649.51 is: 397,883,887.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,297,137.77 : 722,117,511.93 = 288,334,649.51 : x
  2. Step 2: Convert to fraction form
    523,297,137.77/722,117,511.93 = 288,334,649.51/x
  3. Step 3: Cross multiply
    523,297,137.77x = 722,117,511.93 × 288,334,649.51
  4. Step 4: Simplify right side
    523,297,137.77x = 208,211,499,702,317,504
  5. Step 5: Solve for x
    x = 208,211,499,702,317,504/523,297,137.77
  6. Step 6: Final answer
    x = 397,883,887.90

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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.