Home / 681,408,851.20-1,022,113,276.80-374,582,406.40

Finding the Fourth Proportional to 681,408,851.20, 1,022,113,276.80 and 374,582,406.40

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Solution

The fourth proportional to 681,408,851.20, 1,022,113,276.80 and 374,582,406.40 is: 561,873,609.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,408,851.20 : 1,022,113,276.80 = 374,582,406.40 : x
  2. Step 2: Convert to fraction form
    681,408,851.20/1,022,113,276.80 = 374,582,406.40/x
  3. Step 3: Cross multiply
    681,408,851.20x = 1,022,113,276.80 × 374,582,406.40
  4. Step 4: Simplify right side
    681,408,851.20x = 382,865,650,837,133,248
  5. Step 5: Solve for x
    x = 382,865,650,837,133,248/681,408,851.20
  6. Step 6: Final answer
    x = 561,873,609.60

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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.