Home / 38,187,861.34-52,700,367.72-20,785,333.72

Finding the Fourth Proportional to 38,187,861.34, 52,700,367.72 and 20,785,333.72

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Solution

The fourth proportional to 38,187,861.34, 52,700,367.72 and 20,785,333.72 is: 28,684,369.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,187,861.34 : 52,700,367.72 = 20,785,333.72 : x
  2. Step 2: Convert to fraction form
    38,187,861.34/52,700,367.72 = 20,785,333.72/x
  3. Step 3: Cross multiply
    38,187,861.34x = 52,700,367.72 × 20,785,333.72
  4. Step 4: Simplify right side
    38,187,861.34x = 1,095,394,730,226,915.38
  5. Step 5: Solve for x
    x = 1,095,394,730,226,915.38/38,187,861.34
  6. Step 6: Final answer
    x = 28,684,369.63

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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.