Home / 1,271,102,262.28-1,906,659,482.85-385,795,312.18

Finding the Fourth Proportional to 1,271,102,262.28, 1,906,659,482.85 and 385,795,312.18

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Solution

The fourth proportional to 1,271,102,262.28, 1,906,659,482.85 and 385,795,312.18 is: 578,694,816.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,102,262.28 : 1,906,659,482.85 = 385,795,312.18 : x
  2. Step 2: Convert to fraction form
    1,271,102,262.28/1,906,659,482.85 = 385,795,312.18/x
  3. Step 3: Cross multiply
    1,271,102,262.28x = 1,906,659,482.85 × 385,795,312.18
  4. Step 4: Simplify right side
    1,271,102,262.28x = 735,580,290,407,073,024
  5. Step 5: Solve for x
    x = 735,580,290,407,073,024/1,271,102,262.28
  6. Step 6: Final answer
    x = 578,694,816.49

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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.