Home / 21,068,102.64-29,074,578.84-11,901,131.76

Finding the Fourth Proportional to 21,068,102.64, 29,074,578.84 and 11,901,131.76

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Solution

The fourth proportional to 21,068,102.64, 29,074,578.84 and 11,901,131.76 is: 16,423,899.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,068,102.64 : 29,074,578.84 = 11,901,131.76 : x
  2. Step 2: Convert to fraction form
    21,068,102.64/29,074,578.84 = 11,901,131.76/x
  3. Step 3: Cross multiply
    21,068,102.64x = 29,074,578.84 × 11,901,131.76
  4. Step 4: Simplify right side
    21,068,102.64x = 346,020,393,641,347.94
  5. Step 5: Solve for x
    x = 346,020,393,641,347.94/21,068,102.64
  6. Step 6: Final answer
    x = 16,423,899.18

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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.