Home / 762,533,999.20-1,143,800,998.80-209,835,359.20

Finding the Fourth Proportional to 762,533,999.20, 1,143,800,998.80 and 209,835,359.20

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Solution

The fourth proportional to 762,533,999.20, 1,143,800,998.80 and 209,835,359.20 is: 314,753,038.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,533,999.20 : 1,143,800,998.80 = 209,835,359.20 : x
  2. Step 2: Convert to fraction form
    762,533,999.20/1,143,800,998.80 = 209,835,359.20/x
  3. Step 3: Cross multiply
    762,533,999.20x = 1,143,800,998.80 × 209,835,359.20
  4. Step 4: Simplify right side
    762,533,999.20x = 240,009,893,436,516,736
  5. Step 5: Solve for x
    x = 240,009,893,436,516,736/762,533,999.20
  6. Step 6: Final answer
    x = 314,753,038.80

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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.