Home / 1,271,102,264.28-1,906,659,485.85-385,795,314.18

Finding the Fourth Proportional to 1,271,102,264.28, 1,906,659,485.85 and 385,795,314.18

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Solution

The fourth proportional to 1,271,102,264.28, 1,906,659,485.85 and 385,795,314.18 is: 578,694,819.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,102,264.28 : 1,906,659,485.85 = 385,795,314.18 : x
  2. Step 2: Convert to fraction form
    1,271,102,264.28/1,906,659,485.85 = 385,795,314.18/x
  3. Step 3: Cross multiply
    1,271,102,264.28x = 1,906,659,485.85 × 385,795,314.18
  4. Step 4: Simplify right side
    1,271,102,264.28x = 735,580,295,377,778,048
  5. Step 5: Solve for x
    x = 735,580,295,377,778,048/1,271,102,264.28
  6. Step 6: Final answer
    x = 578,694,819.49

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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.