Home / 15,548,885.76-21,457,496.80-8,673,813.12

Finding the Fourth Proportional to 15,548,885.76, 21,457,496.80 and 8,673,813.12

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Solution

The fourth proportional to 15,548,885.76, 21,457,496.80 and 8,673,813.12 is: 11,969,881.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,548,885.76 : 21,457,496.80 = 8,673,813.12 : x
  2. Step 2: Convert to fraction form
    15,548,885.76/21,457,496.80 = 8,673,813.12/x
  3. Step 3: Cross multiply
    15,548,885.76x = 21,457,496.80 × 8,673,813.12
  4. Step 4: Simplify right side
    15,548,885.76x = 186,118,317,266,198
  5. Step 5: Solve for x
    x = 186,118,317,266,198/15,548,885.76
  6. Step 6: Final answer
    x = 11,969,881.32

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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.