Home / 21,153,436.29-29,180,996.28-13,815,567.72

Finding the Fourth Proportional to 21,153,436.29, 29,180,996.28 and 13,815,567.72

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Solution

The fourth proportional to 21,153,436.29, 29,180,996.28 and 13,815,567.72 is: 19,058,465.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,153,436.29 : 29,180,996.28 = 13,815,567.72 : x
  2. Step 2: Convert to fraction form
    21,153,436.29/29,180,996.28 = 13,815,567.72/x
  3. Step 3: Cross multiply
    21,153,436.29x = 29,180,996.28 × 13,815,567.72
  4. Step 4: Simplify right side
    21,153,436.29x = 403,152,030,243,408.12
  5. Step 5: Solve for x
    x = 403,152,030,243,408.12/21,153,436.29
  6. Step 6: Final answer
    x = 19,058,465.24

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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.