Home / 21,121,333.47-29,142,444.47-11,953,976.22

Finding the Fourth Proportional to 21,121,333.47, 29,142,444.47 and 11,953,976.22

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Solution

The fourth proportional to 21,121,333.47, 29,142,444.47 and 11,953,976.22 is: 16,493,659.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,121,333.47 : 29,142,444.47 = 11,953,976.22 : x
  2. Step 2: Convert to fraction form
    21,121,333.47/29,142,444.47 = 11,953,976.22/x
  3. Step 3: Cross multiply
    21,121,333.47x = 29,142,444.47 × 11,953,976.22
  4. Step 4: Simplify right side
    21,121,333.47x = 348,368,088,127,280.62
  5. Step 5: Solve for x
    x = 348,368,088,127,280.62/21,121,333.47
  6. Step 6: Final answer
    x = 16,493,659.77

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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.