Home / 920,049,309.80-1,380,451,878.30-338,062,365.80

Finding the Fourth Proportional to 920,049,309.80, 1,380,451,878.30 and 338,062,365.80

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Solution

The fourth proportional to 920,049,309.80, 1,380,451,878.30 and 338,062,365.80 is: 507,232,409.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,049,309.80 : 1,380,451,878.30 = 338,062,365.80 : x
  2. Step 2: Convert to fraction form
    920,049,309.80/1,380,451,878.30 = 338,062,365.80/x
  3. Step 3: Cross multiply
    920,049,309.80x = 1,380,451,878.30 × 338,062,365.80
  4. Step 4: Simplify right side
    920,049,309.80x = 466,678,827,851,151,680
  5. Step 5: Solve for x
    x = 466,678,827,851,151,680/920,049,309.80
  6. Step 6: Final answer
    x = 507,232,409.05

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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.