Home / 762,533,999.70-1,143,800,999.55-209,835,359.70

Finding the Fourth Proportional to 762,533,999.70, 1,143,800,999.55 and 209,835,359.70

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Solution

The fourth proportional to 762,533,999.70, 1,143,800,999.55 and 209,835,359.70 is: 314,753,039.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,533,999.70 : 1,143,800,999.55 = 209,835,359.70 : x
  2. Step 2: Convert to fraction form
    762,533,999.70/1,143,800,999.55 = 209,835,359.70/x
  3. Step 3: Cross multiply
    762,533,999.70x = 1,143,800,999.55 × 209,835,359.70
  4. Step 4: Simplify right side
    762,533,999.70x = 240,009,894,165,793,760
  5. Step 5: Solve for x
    x = 240,009,894,165,793,760/762,533,999.70
  6. Step 6: Final answer
    x = 314,753,039.55

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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.