Home / 21,153,377.61-29,180,917.64-13,815,506.00

Finding the Fourth Proportional to 21,153,377.61, 29,180,917.64 and 13,815,506.00

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Solution

The fourth proportional to 21,153,377.61, 29,180,917.64 and 13,815,506.00 is: 19,058,381.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,153,377.61 : 29,180,917.64 = 13,815,506.00 : x
  2. Step 2: Convert to fraction form
    21,153,377.61/29,180,917.64 = 13,815,506.00/x
  3. Step 3: Cross multiply
    21,153,377.61x = 29,180,917.64 × 13,815,506.00
  4. Step 4: Simplify right side
    21,153,377.61x = 403,149,142,848,416.88
  5. Step 5: Solve for x
    x = 403,149,142,848,416.88/21,153,377.61
  6. Step 6: Final answer
    x = 19,058,381.61

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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.