Home / 31,730,153.55-43,796,692.07-18,684,979.28

Finding the Fourth Proportional to 31,730,153.55, 43,796,692.07 and 18,684,979.28

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Solution

The fourth proportional to 31,730,153.55, 43,796,692.07 and 18,684,979.28 is: 25,790,618.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,730,153.55 : 43,796,692.07 = 18,684,979.28 : x
  2. Step 2: Convert to fraction form
    31,730,153.55/43,796,692.07 = 18,684,979.28/x
  3. Step 3: Cross multiply
    31,730,153.55x = 43,796,692.07 × 18,684,979.28
  4. Step 4: Simplify right side
    31,730,153.55x = 818,340,283,548,081.88
  5. Step 5: Solve for x
    x = 818,340,283,548,081.88/31,730,153.55
  6. Step 6: Final answer
    x = 25,790,618.45

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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.