Home / 21,620,482.40-29,836,264.77-11,830,927.40

Finding the Fourth Proportional to 21,620,482.40, 29,836,264.77 and 11,830,927.40

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Solution

The fourth proportional to 21,620,482.40, 29,836,264.77 and 11,830,927.40 is: 16,326,679.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,620,482.40 : 29,836,264.77 = 11,830,927.40 : x
  2. Step 2: Convert to fraction form
    21,620,482.40/29,836,264.77 = 11,830,927.40/x
  3. Step 3: Cross multiply
    21,620,482.40x = 29,836,264.77 × 11,830,927.40
  4. Step 4: Simplify right side
    21,620,482.40x = 352,990,682,172,711.75
  5. Step 5: Solve for x
    x = 352,990,682,172,711.75/21,620,482.40
  6. Step 6: Final answer
    x = 16,326,679.29

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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.