Home / 21,346,430.53-29,446,048.11-13,503,513.19

Finding the Fourth Proportional to 21,346,430.53, 29,446,048.11 and 13,503,513.19

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Solution

The fourth proportional to 21,346,430.53, 29,446,048.11 and 13,503,513.19 is: 18,627,240.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,346,430.53 : 29,446,048.11 = 13,503,513.19 : x
  2. Step 2: Convert to fraction form
    21,346,430.53/29,446,048.11 = 13,503,513.19/x
  3. Step 3: Cross multiply
    21,346,430.53x = 29,446,048.11 × 13,503,513.19
  4. Step 4: Simplify right side
    21,346,430.53x = 397,625,099,046,759.56
  5. Step 5: Solve for x
    x = 397,625,099,046,759.56/21,346,430.53
  6. Step 6: Final answer
    x = 18,627,240.68

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Double scale
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1.5x scale

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.