Home / 718,890,638,380.50-992,100,265,922.82-398,106,473,488.50

Finding the Fourth Proportional to 718,890,638,380.50, 992,100,265,922.82 and 398,106,473,488.50

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Solution

The fourth proportional to 718,890,638,380.50, 992,100,265,922.82 and 398,106,473,488.50 is: 549,404,202,986.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,890,638,380.50 : 992,100,265,922.82 = 398,106,473,488.50 : x
  2. Step 2: Convert to fraction form
    718,890,638,380.50/992,100,265,922.82 = 398,106,473,488.50/x
  3. Step 3: Cross multiply
    718,890,638,380.50x = 992,100,265,922.82 × 398,106,473,488.50
  4. Step 4: Simplify right side
    718,890,638,380.50x = 394,961,538,213,536,952,483,840
  5. Step 5: Solve for x
    x = 394,961,538,213,536,952,483,840/718,890,638,380.50
  6. Step 6: Final answer
    x = 549,404,202,986.00

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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.