Home / 38,989,520.21-53,805,340.54-21,348,102.23

Finding the Fourth Proportional to 38,989,520.21, 53,805,340.54 and 21,348,102.23

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Solution

The fourth proportional to 38,989,520.21, 53,805,340.54 and 21,348,102.23 is: 29,460,273.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,989,520.21 : 53,805,340.54 = 21,348,102.23 : x
  2. Step 2: Convert to fraction form
    38,989,520.21/53,805,340.54 = 21,348,102.23/x
  3. Step 3: Cross multiply
    38,989,520.21x = 53,805,340.54 × 21,348,102.23
  4. Step 4: Simplify right side
    38,989,520.21x = 1,148,641,910,367,883.50
  5. Step 5: Solve for x
    x = 1,148,641,910,367,883.50/38,989,520.21
  6. Step 6: Final answer
    x = 29,460,273.02

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1.5x scale

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.