Home / 636,424,806.67-878,259,887.73-354,162,412.76

Finding the Fourth Proportional to 636,424,806.67, 878,259,887.73 and 354,162,412.76

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Solution

The fourth proportional to 636,424,806.67, 878,259,887.73 and 354,162,412.76 is: 488,740,598.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,424,806.67 : 878,259,887.73 = 354,162,412.76 : x
  2. Step 2: Convert to fraction form
    636,424,806.67/878,259,887.73 = 354,162,412.76/x
  3. Step 3: Cross multiply
    636,424,806.67x = 878,259,887.73 × 354,162,412.76
  4. Step 4: Simplify right side
    636,424,806.67x = 311,046,640,868,783,488
  5. Step 5: Solve for x
    x = 311,046,640,868,783,488/636,424,806.67
  6. Step 6: Final answer
    x = 488,740,598.43

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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.