Home / 769,827,057.80-1,155,072,362.70-446,986,891.40

Finding the Fourth Proportional to 769,827,057.80, 1,155,072,362.70 and 446,986,891.40

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Solution

The fourth proportional to 769,827,057.80, 1,155,072,362.70 and 446,986,891.40 is: 670,672,977.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,827,057.80 : 1,155,072,362.70 = 446,986,891.40 : x
  2. Step 2: Convert to fraction form
    769,827,057.80/1,155,072,362.70 = 446,986,891.40/x
  3. Step 3: Cross multiply
    769,827,057.80x = 1,155,072,362.70 × 446,986,891.40
  4. Step 4: Simplify right side
    769,827,057.80x = 516,302,204,745,326,336
  5. Step 5: Solve for x
    x = 516,302,204,745,326,336/769,827,057.80
  6. Step 6: Final answer
    x = 670,672,977.15

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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.