Home / 21,187,255.11-31,784,044.91-9,828,851.91

Finding the Fourth Proportional to 21,187,255.11, 31,784,044.91 and 9,828,851.91

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Solution

The fourth proportional to 21,187,255.11, 31,784,044.91 and 9,828,851.91 is: 14,744,744.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,187,255.11 : 31,784,044.91 = 9,828,851.91 : x
  2. Step 2: Convert to fraction form
    21,187,255.11/31,784,044.91 = 9,828,851.91/x
  3. Step 3: Cross multiply
    21,187,255.11x = 31,784,044.91 × 9,828,851.91
  4. Step 4: Simplify right side
    21,187,255.11x = 312,400,670,472,035.06
  5. Step 5: Solve for x
    x = 312,400,670,472,035.06/21,187,255.11
  6. Step 6: Final answer
    x = 14,744,744.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.