Home / 21,254,136.96-31,878,843.36-7,606,732.32

Finding the Fourth Proportional to 21,254,136.96, 31,878,843.36 and 7,606,732.32

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Solution

The fourth proportional to 21,254,136.96, 31,878,843.36 and 7,606,732.32 is: 11,409,253.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,254,136.96 : 31,878,843.36 = 7,606,732.32 : x
  2. Step 2: Convert to fraction form
    21,254,136.96/31,878,843.36 = 7,606,732.32/x
  3. Step 3: Cross multiply
    21,254,136.96x = 31,878,843.36 × 7,606,732.32
  4. Step 4: Simplify right side
    21,254,136.96x = 242,493,828,110,729.41
  5. Step 5: Solve for x
    x = 242,493,828,110,729.41/21,254,136.96
  6. Step 6: Final answer
    x = 11,409,253.11

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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.