Home / 21,417,843.76-32,139,531.36-7,772,054.80

Finding the Fourth Proportional to 21,417,843.76, 32,139,531.36 and 7,772,054.80

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Solution

The fourth proportional to 21,417,843.76, 32,139,531.36 and 7,772,054.80 is: 11,662,714.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,417,843.76 : 32,139,531.36 = 7,772,054.80 : x
  2. Step 2: Convert to fraction form
    21,417,843.76/32,139,531.36 = 7,772,054.80/x
  3. Step 3: Cross multiply
    21,417,843.76x = 32,139,531.36 × 7,772,054.80
  4. Step 4: Simplify right side
    21,417,843.76x = 249,790,198,976,238.53
  5. Step 5: Solve for x
    x = 249,790,198,976,238.53/21,417,843.76
  6. Step 6: Final answer
    x = 11,662,714.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.