Home / 21,671,399.68-29,907,753.32-12,856,070.04

Finding the Fourth Proportional to 21,671,399.68, 29,907,753.32 and 12,856,070.04

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Solution

The fourth proportional to 21,671,399.68, 29,907,753.32 and 12,856,070.04 is: 17,742,101.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,671,399.68 : 29,907,753.32 = 12,856,070.04 : x
  2. Step 2: Convert to fraction form
    21,671,399.68/29,907,753.32 = 12,856,070.04/x
  3. Step 3: Cross multiply
    21,671,399.68x = 29,907,753.32 × 12,856,070.04
  4. Step 4: Simplify right side
    21,671,399.68x = 384,496,171,420,962.50
  5. Step 5: Solve for x
    x = 384,496,171,420,962.50/21,671,399.68
  6. Step 6: Final answer
    x = 17,742,101.44

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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.