Home / 570,261,111.10-787,315,761.06-391,952,026.78

Finding the Fourth Proportional to 570,261,111.10, 787,315,761.06 and 391,952,026.78

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Solution

The fourth proportional to 570,261,111.10, 787,315,761.06 and 391,952,026.78 is: 541,138,089.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,261,111.10 : 787,315,761.06 = 391,952,026.78 : x
  2. Step 2: Convert to fraction form
    570,261,111.10/787,315,761.06 = 391,952,026.78/x
  3. Step 3: Cross multiply
    570,261,111.10x = 787,315,761.06 × 391,952,026.78
  4. Step 4: Simplify right side
    570,261,111.10x = 308,590,008,263,305,152
  5. Step 5: Solve for x
    x = 308,590,008,263,305,152/570,261,111.10
  6. Step 6: Final answer
    x = 541,138,089.65

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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.