Home / 21,731,814.09-29,983,363.38-13,026,810.51

Finding the Fourth Proportional to 21,731,814.09, 29,983,363.38 and 13,026,810.51

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Solution

The fourth proportional to 21,731,814.09, 29,983,363.38 and 13,026,810.51 is: 17,973,078.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,731,814.09 : 29,983,363.38 = 13,026,810.51 : x
  2. Step 2: Convert to fraction form
    21,731,814.09/29,983,363.38 = 13,026,810.51/x
  3. Step 3: Cross multiply
    21,731,814.09x = 29,983,363.38 × 13,026,810.51
  4. Step 4: Simplify right side
    21,731,814.09x = 390,587,593,203,733.12
  5. Step 5: Solve for x
    x = 390,587,593,203,733.12/21,731,814.09
  6. Step 6: Final answer
    x = 17,973,078.16

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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.