Home / 1,119,745,687.20-1,679,618,530.80-343,385,181.60

Finding the Fourth Proportional to 1,119,745,687.20, 1,679,618,530.80 and 343,385,181.60

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Solution

The fourth proportional to 1,119,745,687.20, 1,679,618,530.80 and 343,385,181.60 is: 515,077,772.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,745,687.20 : 1,679,618,530.80 = 343,385,181.60 : x
  2. Step 2: Convert to fraction form
    1,119,745,687.20/1,679,618,530.80 = 343,385,181.60/x
  3. Step 3: Cross multiply
    1,119,745,687.20x = 1,679,618,530.80 × 343,385,181.60
  4. Step 4: Simplify right side
    1,119,745,687.20x = 576,756,114,217,483,264
  5. Step 5: Solve for x
    x = 576,756,114,217,483,264/1,119,745,687.20
  6. Step 6: Final answer
    x = 515,077,772.40

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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.