Home / 520,425,557.84-779,446,859.16-261,714,305.36

Finding the Fourth Proportional to 520,425,557.84, 779,446,859.16 and 261,714,305.36

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Solution

The fourth proportional to 520,425,557.84, 779,446,859.16 and 261,714,305.36 is: 391,972,281.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,425,557.84 : 779,446,859.16 = 261,714,305.36 : x
  2. Step 2: Convert to fraction form
    520,425,557.84/779,446,859.16 = 261,714,305.36/x
  3. Step 3: Cross multiply
    520,425,557.84x = 779,446,859.16 × 261,714,305.36
  4. Step 4: Simplify right side
    520,425,557.84x = 203,992,393,310,093,152
  5. Step 5: Solve for x
    x = 203,992,393,310,093,152/520,425,557.84
  6. Step 6: Final answer
    x = 391,972,281.60

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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.