Home / 21,404,720.70-29,538,594.10-11,615,166.91

Finding the Fourth Proportional to 21,404,720.70, 29,538,594.10 and 11,615,166.91

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Solution

The fourth proportional to 21,404,720.70, 29,538,594.10 and 11,615,166.91 is: 16,028,973.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,404,720.70 : 29,538,594.10 = 11,615,166.91 : x
  2. Step 2: Convert to fraction form
    21,404,720.70/29,538,594.10 = 11,615,166.91/x
  3. Step 3: Cross multiply
    21,404,720.70x = 29,538,594.10 × 11,615,166.91
  4. Step 4: Simplify right side
    21,404,720.70x = 343,095,700,804,902.56
  5. Step 5: Solve for x
    x = 343,095,700,804,902.56/21,404,720.70
  6. Step 6: Final answer
    x = 16,028,973.49

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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.