Home / 31,730,154.05-43,796,692.76-18,684,979.78

Finding the Fourth Proportional to 31,730,154.05, 43,796,692.76 and 18,684,979.78

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Solution

The fourth proportional to 31,730,154.05, 43,796,692.76 and 18,684,979.78 is: 25,790,619.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,730,154.05 : 43,796,692.76 = 18,684,979.78 : x
  2. Step 2: Convert to fraction form
    31,730,154.05/43,796,692.76 = 18,684,979.78/x
  3. Step 3: Cross multiply
    31,730,154.05x = 43,796,692.76 × 18,684,979.78
  4. Step 4: Simplify right side
    31,730,154.05x = 818,340,318,651,472.38
  5. Step 5: Solve for x
    x = 818,340,318,651,472.38/31,730,154.05
  6. Step 6: Final answer
    x = 25,790,619.15

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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.