Home / 22,768,279.12-31,420,266.53-12,455,002.21

Finding the Fourth Proportional to 22,768,279.12, 31,420,266.53 and 12,455,002.21

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Solution

The fourth proportional to 22,768,279.12, 31,420,266.53 and 12,455,002.21 is: 17,187,925.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,768,279.12 : 31,420,266.53 = 12,455,002.21 : x
  2. Step 2: Convert to fraction form
    22,768,279.12/31,420,266.53 = 12,455,002.21/x
  3. Step 3: Cross multiply
    22,768,279.12x = 31,420,266.53 × 12,455,002.21
  4. Step 4: Simplify right side
    22,768,279.12x = 391,339,488,988,026.31
  5. Step 5: Solve for x
    x = 391,339,488,988,026.31/22,768,279.12
  6. Step 6: Final answer
    x = 17,187,925.67

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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.