Home / 31,183,646.64-43,013,155.80-20,002,443.88

Finding the Fourth Proportional to 31,183,646.64, 43,013,155.80 and 20,002,443.88

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Solution

The fourth proportional to 31,183,646.64, 43,013,155.80 and 20,002,443.88 is: 27,590,366.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,183,646.64 : 43,013,155.80 = 20,002,443.88 : x
  2. Step 2: Convert to fraction form
    31,183,646.64/43,013,155.80 = 20,002,443.88/x
  3. Step 3: Cross multiply
    31,183,646.64x = 43,013,155.80 × 20,002,443.88
  4. Step 4: Simplify right side
    31,183,646.64x = 860,368,234,991,196.38
  5. Step 5: Solve for x
    x = 860,368,234,991,196.38/31,183,646.64
  6. Step 6: Final answer
    x = 27,590,366.35

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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.