Home / 39,478,949.02-54,476,755.35-21,835,047.83

Finding the Fourth Proportional to 39,478,949.02, 54,476,755.35 and 21,835,047.83

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Solution

The fourth proportional to 39,478,949.02, 54,476,755.35 and 21,835,047.83 is: 30,130,046.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,478,949.02 : 54,476,755.35 = 21,835,047.83 : x
  2. Step 2: Convert to fraction form
    39,478,949.02/54,476,755.35 = 21,835,047.83/x
  3. Step 3: Cross multiply
    39,478,949.02x = 54,476,755.35 × 21,835,047.83
  4. Step 4: Simplify right side
    39,478,949.02x = 1,189,502,558,690,458.25
  5. Step 5: Solve for x
    x = 1,189,502,558,690,458.25/39,478,949.02
  6. Step 6: Final answer
    x = 30,130,046.22

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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.