Home / 38,989,521.47-53,805,342.26-21,348,103.48

Finding the Fourth Proportional to 38,989,521.47, 53,805,342.26 and 21,348,103.48

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Solution

The fourth proportional to 38,989,521.47, 53,805,342.26 and 21,348,103.48 is: 29,460,274.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,989,521.47 : 53,805,342.26 = 21,348,103.48 : x
  2. Step 2: Convert to fraction form
    38,989,521.47/53,805,342.26 = 21,348,103.48/x
  3. Step 3: Cross multiply
    38,989,521.47x = 53,805,342.26 × 21,348,103.48
  4. Step 4: Simplify right side
    38,989,521.47x = 1,148,642,014,262,154
  5. Step 5: Solve for x
    x = 1,148,642,014,262,154/38,989,521.47
  6. Step 6: Final answer
    x = 29,460,274.73

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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.