Home / 30,715,835.88-42,384,227.76-16,963,979.88

Finding the Fourth Proportional to 30,715,835.88, 42,384,227.76 and 16,963,979.88

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Solution

The fourth proportional to 30,715,835.88, 42,384,227.76 and 16,963,979.88 is: 23,408,289.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,715,835.88 : 42,384,227.76 = 16,963,979.88 : x
  2. Step 2: Convert to fraction form
    30,715,835.88/42,384,227.76 = 16,963,979.88/x
  3. Step 3: Cross multiply
    30,715,835.88x = 42,384,227.76 × 16,963,979.88
  4. Step 4: Simplify right side
    30,715,835.88x = 719,005,186,949,977.38
  5. Step 5: Solve for x
    x = 719,005,186,949,977.38/30,715,835.88
  6. Step 6: Final answer
    x = 23,408,289.77

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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.