Home / 38,709,297.90-53,418,828.06-21,068,326.98

Finding the Fourth Proportional to 38,709,297.90, 53,418,828.06 and 21,068,326.98

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Solution

The fourth proportional to 38,709,297.90, 53,418,828.06 and 21,068,326.98 is: 29,074,289.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,709,297.90 : 53,418,828.06 = 21,068,326.98 : x
  2. Step 2: Convert to fraction form
    38,709,297.90/53,418,828.06 = 21,068,326.98/x
  3. Step 3: Cross multiply
    38,709,297.90x = 53,418,828.06 × 21,068,326.98
  4. Step 4: Simplify right side
    38,709,297.90x = 1,125,445,336,456,479.12
  5. Step 5: Solve for x
    x = 1,125,445,336,456,479.12/38,709,297.90
  6. Step 6: Final answer
    x = 29,074,289.58

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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.