Home / 38,922,652.40-53,714,381.58-21,520,121.13

Finding the Fourth Proportional to 38,922,652.40, 53,714,381.58 and 21,520,121.13

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Solution

The fourth proportional to 38,922,652.40, 53,714,381.58 and 21,520,121.13 is: 29,698,387.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,922,652.40 : 53,714,381.58 = 21,520,121.13 : x
  2. Step 2: Convert to fraction form
    38,922,652.40/53,714,381.58 = 21,520,121.13/x
  3. Step 3: Cross multiply
    38,922,652.40x = 53,714,381.58 × 21,520,121.13
  4. Step 4: Simplify right side
    38,922,652.40x = 1,155,939,998,024,640.75
  5. Step 5: Solve for x
    x = 1,155,939,998,024,640.75/38,922,652.40
  6. Step 6: Final answer
    x = 29,698,387.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.