Home / 718,890,638,230.20-992,100,265,715.55-398,106,473,338.17

Finding the Fourth Proportional to 718,890,638,230.20, 992,100,265,715.55 and 398,106,473,338.17

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Solution

The fourth proportional to 718,890,638,230.20, 992,100,265,715.55 and 398,106,473,338.17 is: 549,404,202,778.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,890,638,230.20 : 992,100,265,715.55 = 398,106,473,338.17 : x
  2. Step 2: Convert to fraction form
    718,890,638,230.20/992,100,265,715.55 = 398,106,473,338.17/x
  3. Step 3: Cross multiply
    718,890,638,230.20x = 992,100,265,715.55 × 398,106,473,338.17
  4. Step 4: Simplify right side
    718,890,638,230.20x = 394,961,537,981,878,965,895,168
  5. Step 5: Solve for x
    x = 394,961,537,981,878,965,895,168/718,890,638,230.20
  6. Step 6: Final answer
    x = 549,404,202,778.62

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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.