Home / 38,989,521.59-53,805,342.42-21,348,103.61

Finding the Fourth Proportional to 38,989,521.59, 53,805,342.42 and 21,348,103.61

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Solution

The fourth proportional to 38,989,521.59, 53,805,342.42 and 21,348,103.61 is: 29,460,274.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,989,521.59 : 53,805,342.42 = 21,348,103.61 : x
  2. Step 2: Convert to fraction form
    38,989,521.59/53,805,342.42 = 21,348,103.61/x
  3. Step 3: Cross multiply
    38,989,521.59x = 53,805,342.42 × 21,348,103.61
  4. Step 4: Simplify right side
    38,989,521.59x = 1,148,642,024,888,201.50
  5. Step 5: Solve for x
    x = 1,148,642,024,888,201.50/38,989,521.59
  6. Step 6: Final answer
    x = 29,460,274.92

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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.