Home / 21,121,316.51-29,142,421.04-11,953,959.26

Finding the Fourth Proportional to 21,121,316.51, 29,142,421.04 and 11,953,959.26

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Solution

The fourth proportional to 21,121,316.51, 29,142,421.04 and 11,953,959.26 is: 16,493,636.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,121,316.51 : 29,142,421.04 = 11,953,959.26 : x
  2. Step 2: Convert to fraction form
    21,121,316.51/29,142,421.04 = 11,953,959.26/x
  3. Step 3: Cross multiply
    21,121,316.51x = 29,142,421.04 × 11,953,959.26
  4. Step 4: Simplify right side
    21,121,316.51x = 348,367,313,734,099.62
  5. Step 5: Solve for x
    x = 348,367,313,734,099.62/21,121,316.51
  6. Step 6: Final answer
    x = 16,493,636.35

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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.