Home / 55,355,856.10-83,033,784.15-21,278,313.70

Finding the Fourth Proportional to 55,355,856.10, 83,033,784.15 and 21,278,313.70

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Solution

The fourth proportional to 55,355,856.10, 83,033,784.15 and 21,278,313.70 is: 31,917,470.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,355,856.10 : 83,033,784.15 = 21,278,313.70 : x
  2. Step 2: Convert to fraction form
    55,355,856.10/83,033,784.15 = 21,278,313.70/x
  3. Step 3: Cross multiply
    55,355,856.10x = 83,033,784.15 × 21,278,313.70
  4. Step 4: Simplify right side
    55,355,856.10x = 1,766,818,906,841,788
  5. Step 5: Solve for x
    x = 1,766,818,906,841,788/55,355,856.10
  6. Step 6: Final answer
    x = 31,917,470.55

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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.