Home / 21,153,368.77-29,180,905.49-13,815,497.16

Finding the Fourth Proportional to 21,153,368.77, 29,180,905.49 and 13,815,497.16

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Solution

The fourth proportional to 21,153,368.77, 29,180,905.49 and 13,815,497.16 is: 19,058,369.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,153,368.77 : 29,180,905.49 = 13,815,497.16 : x
  2. Step 2: Convert to fraction form
    21,153,368.77/29,180,905.49 = 13,815,497.16/x
  3. Step 3: Cross multiply
    21,153,368.77x = 29,180,905.49 × 13,815,497.16
  4. Step 4: Simplify right side
    21,153,368.77x = 403,148,716,932,023.25
  5. Step 5: Solve for x
    x = 403,148,716,932,023.25/21,153,368.77
  6. Step 6: Final answer
    x = 19,058,369.44

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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.