Home / 21,555,258.17-29,741,815.77-12,386,129.45

Finding the Fourth Proportional to 21,555,258.17, 29,741,815.77 and 12,386,129.45

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Solution

The fourth proportional to 21,555,258.17, 29,741,815.77 and 12,386,129.45 is: 17,090,307.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,555,258.17 : 29,741,815.77 = 12,386,129.45 : x
  2. Step 2: Convert to fraction form
    21,555,258.17/29,741,815.77 = 12,386,129.45/x
  3. Step 3: Cross multiply
    21,555,258.17x = 29,741,815.77 × 12,386,129.45
  4. Step 4: Simplify right side
    21,555,258.17x = 368,385,980,056,562.38
  5. Step 5: Solve for x
    x = 368,385,980,056,562.38/21,555,258.17
  6. Step 6: Final answer
    x = 17,090,307.03

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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.