Home / 21,756,823.12-30,023,789.16-11,967,266.80

Finding the Fourth Proportional to 21,756,823.12, 30,023,789.16 and 11,967,266.80

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Solution

The fourth proportional to 21,756,823.12, 30,023,789.16 and 11,967,266.80 is: 16,514,483.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,756,823.12 : 30,023,789.16 = 11,967,266.80 : x
  2. Step 2: Convert to fraction form
    21,756,823.12/30,023,789.16 = 11,967,266.80/x
  3. Step 3: Cross multiply
    21,756,823.12x = 30,023,789.16 × 11,967,266.80
  4. Step 4: Simplify right side
    21,756,823.12x = 359,302,695,224,667.94
  5. Step 5: Solve for x
    x = 359,302,695,224,667.94/21,756,823.12
  6. Step 6: Final answer
    x = 16,514,483.44

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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.