Home / 31,339,368.21-47,020,020.12-12,183,566.43

Finding the Fourth Proportional to 31,339,368.21, 47,020,020.12 and 12,183,566.43

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Solution

The fourth proportional to 31,339,368.21, 47,020,020.12 and 12,183,566.43 is: 18,279,613.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,339,368.21 : 47,020,020.12 = 12,183,566.43 : x
  2. Step 2: Convert to fraction form
    31,339,368.21/47,020,020.12 = 12,183,566.43/x
  3. Step 3: Cross multiply
    31,339,368.21x = 47,020,020.12 × 12,183,566.43
  4. Step 4: Simplify right side
    31,339,368.21x = 572,871,538,671,956.50
  5. Step 5: Solve for x
    x = 572,871,538,671,956.50/31,339,368.21
  6. Step 6: Final answer
    x = 18,279,613.51

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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.