Home / 1,115,638,129.40-1,673,520,179.70-339,309,116.60

Finding the Fourth Proportional to 1,115,638,129.40, 1,673,520,179.70 and 339,309,116.60

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Solution

The fourth proportional to 1,115,638,129.40, 1,673,520,179.70 and 339,309,116.60 is: 508,982,831.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,638,129.40 : 1,673,520,179.70 = 339,309,116.60 : x
  2. Step 2: Convert to fraction form
    1,115,638,129.40/1,673,520,179.70 = 339,309,116.60/x
  3. Step 3: Cross multiply
    1,115,638,129.40x = 1,673,520,179.70 × 339,309,116.60
  4. Step 4: Simplify right side
    1,115,638,129.40x = 567,840,653,786,280,320
  5. Step 5: Solve for x
    x = 567,840,653,786,280,320/1,115,638,129.40
  6. Step 6: Final answer
    x = 508,982,831.28

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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.