Home / 612,324,279.96-917,966,205.54-284,989,879.32

Finding the Fourth Proportional to 612,324,279.96, 917,966,205.54 and 284,989,879.32

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Solution

The fourth proportional to 612,324,279.96, 917,966,205.54 and 284,989,879.32 is: 427,242,699.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,324,279.96 : 917,966,205.54 = 284,989,879.32 : x
  2. Step 2: Convert to fraction form
    612,324,279.96/917,966,205.54 = 284,989,879.32/x
  3. Step 3: Cross multiply
    612,324,279.96x = 917,966,205.54 × 284,989,879.32
  4. Step 4: Simplify right side
    612,324,279.96x = 261,611,078,136,682,912
  5. Step 5: Solve for x
    x = 261,611,078,136,682,912/612,324,279.96
  6. Step 6: Final answer
    x = 427,242,699.17

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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.