Home / 38,493,485.28-53,121,008.16-21,090,490.56

Finding the Fourth Proportional to 38,493,485.28, 53,121,008.16 and 21,090,490.56

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Solution

The fourth proportional to 38,493,485.28, 53,121,008.16 and 21,090,490.56 is: 29,104,876.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,493,485.28 : 53,121,008.16 = 21,090,490.56 : x
  2. Step 2: Convert to fraction form
    38,493,485.28/53,121,008.16 = 21,090,490.56/x
  3. Step 3: Cross multiply
    38,493,485.28x = 53,121,008.16 × 21,090,490.56
  4. Step 4: Simplify right side
    38,493,485.28x = 1,120,348,121,136,162.88
  5. Step 5: Solve for x
    x = 1,120,348,121,136,162.88/38,493,485.28
  6. Step 6: Final answer
    x = 29,104,876.14

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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.