Home / 38,521,405.61-53,159,535.17-21,117,873.80

Finding the Fourth Proportional to 38,521,405.61, 53,159,535.17 and 21,117,873.80

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Solution

The fourth proportional to 38,521,405.61, 53,159,535.17 and 21,117,873.80 is: 29,142,663.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,521,405.61 : 53,159,535.17 = 21,117,873.80 : x
  2. Step 2: Convert to fraction form
    38,521,405.61/53,159,535.17 = 21,117,873.80/x
  3. Step 3: Cross multiply
    38,521,405.61x = 53,159,535.17 × 21,117,873.80
  4. Step 4: Simplify right side
    38,521,405.61x = 1,122,616,354,615,334.62
  5. Step 5: Solve for x
    x = 1,122,616,354,615,334.62/38,521,405.61
  6. Step 6: Final answer
    x = 29,142,663.33

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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.