Home / 21,242,066.40-29,313,200.16-12,543,040.62

Finding the Fourth Proportional to 21,242,066.40, 29,313,200.16 and 12,543,040.62

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Solution

The fourth proportional to 21,242,066.40, 29,313,200.16 and 12,543,040.62 is: 17,308,893.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,242,066.40 : 29,313,200.16 = 12,543,040.62 : x
  2. Step 2: Convert to fraction form
    21,242,066.40/29,313,200.16 = 12,543,040.62/x
  3. Step 3: Cross multiply
    21,242,066.40x = 29,313,200.16 × 12,543,040.62
  4. Step 4: Simplify right side
    21,242,066.40x = 367,676,660,309,070.50
  5. Step 5: Solve for x
    x = 367,676,660,309,070.50/21,242,066.40
  6. Step 6: Final answer
    x = 17,308,893.28

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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.