Home / 21,153,369.77-29,180,906.87-13,815,498.16

Finding the Fourth Proportional to 21,153,369.77, 29,180,906.87 and 13,815,498.16

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Solution

The fourth proportional to 21,153,369.77, 29,180,906.87 and 13,815,498.16 is: 19,058,370.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,153,369.77 : 29,180,906.87 = 13,815,498.16 : x
  2. Step 2: Convert to fraction form
    21,153,369.77/29,180,906.87 = 13,815,498.16/x
  3. Step 3: Cross multiply
    21,153,369.77x = 29,180,906.87 × 13,815,498.16
  4. Step 4: Simplify right side
    21,153,369.77x = 403,148,765,169,616.38
  5. Step 5: Solve for x
    x = 403,148,765,169,616.38/21,153,369.77
  6. Step 6: Final answer
    x = 19,058,370.82

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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.