Home / 38,015,999.80-57,023,999.70-21,009,887.80

Finding the Fourth Proportional to 38,015,999.80, 57,023,999.70 and 21,009,887.80

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Solution

The fourth proportional to 38,015,999.80, 57,023,999.70 and 21,009,887.80 is: 31,514,831.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,015,999.80 : 57,023,999.70 = 21,009,887.80 : x
  2. Step 2: Convert to fraction form
    38,015,999.80/57,023,999.70 = 21,009,887.80/x
  3. Step 3: Cross multiply
    38,015,999.80x = 57,023,999.70 × 21,009,887.80
  4. Step 4: Simplify right side
    38,015,999.80x = 1,198,067,835,604,233.75
  5. Step 5: Solve for x
    x = 1,198,067,835,604,233.75/38,015,999.80
  6. Step 6: Final answer
    x = 31,514,831.70

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1.5x scale

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.