Home / 636,424,805.17-878,259,885.66-354,162,411.26

Finding the Fourth Proportional to 636,424,805.17, 878,259,885.66 and 354,162,411.26

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Solution

The fourth proportional to 636,424,805.17, 878,259,885.66 and 354,162,411.26 is: 488,740,596.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,424,805.17 : 878,259,885.66 = 354,162,411.26 : x
  2. Step 2: Convert to fraction form
    636,424,805.17/878,259,885.66 = 354,162,411.26/x
  3. Step 3: Cross multiply
    636,424,805.17x = 878,259,885.66 × 354,162,411.26
  4. Step 4: Simplify right side
    636,424,805.17x = 311,046,638,813,886,208
  5. Step 5: Solve for x
    x = 311,046,638,813,886,208/636,424,805.17
  6. Step 6: Final answer
    x = 488,740,596.36

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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.