Home / 21,087,959.51-29,107,570.77-12,269,485.06

Finding the Fourth Proportional to 21,087,959.51, 29,107,570.77 and 12,269,485.06

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Solution

The fourth proportional to 21,087,959.51, 29,107,570.77 and 12,269,485.06 is: 16,935,488.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,087,959.51 : 29,107,570.77 = 12,269,485.06 : x
  2. Step 2: Convert to fraction form
    21,087,959.51/29,107,570.77 = 12,269,485.06/x
  3. Step 3: Cross multiply
    21,087,959.51x = 29,107,570.77 × 12,269,485.06
  4. Step 4: Simplify right side
    21,087,959.51x = 357,134,904,695,407.69
  5. Step 5: Solve for x
    x = 357,134,904,695,407.69/21,087,959.51
  6. Step 6: Final answer
    x = 16,935,488.92

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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.