Home / 21,180,020,681.12-29,231,606,185.11-16,091,010,383.39

Finding the Fourth Proportional to 21,180,020,681.12, 29,231,606,185.11 and 16,091,010,383.39

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Solution

The fourth proportional to 21,180,020,681.12, 29,231,606,185.11 and 16,091,010,383.39 is: 22,208,008,468.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,180,020,681.12 : 29,231,606,185.11 = 16,091,010,383.39 : x
  2. Step 2: Convert to fraction form
    21,180,020,681.12/29,231,606,185.11 = 16,091,010,383.39/x
  3. Step 3: Cross multiply
    21,180,020,681.12x = 29,231,606,185.11 × 16,091,010,383.39
  4. Step 4: Simplify right side
    21,180,020,681.12x = 470,366,078,647,830,839,296
  5. Step 5: Solve for x
    x = 470,366,078,647,830,839,296/21,180,020,681.12
  6. Step 6: Final answer
    x = 22,208,008,468.44

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1.5x scale

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.