Home / 539,191,285.40-808,786,928.10-518,028,123.80

Finding the Fourth Proportional to 539,191,285.40, 808,786,928.10 and 518,028,123.80

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Solution

The fourth proportional to 539,191,285.40, 808,786,928.10 and 518,028,123.80 is: 777,042,185.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,191,285.40 : 808,786,928.10 = 518,028,123.80 : x
  2. Step 2: Convert to fraction form
    539,191,285.40/808,786,928.10 = 518,028,123.80/x
  3. Step 3: Cross multiply
    539,191,285.40x = 808,786,928.10 × 518,028,123.80
  4. Step 4: Simplify right side
    539,191,285.40x = 418,974,374,917,608,512
  5. Step 5: Solve for x
    x = 418,974,374,917,608,512/539,191,285.40
  6. Step 6: Final answer
    x = 777,042,185.70

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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.