Home / 25,210,913.30-34,790,587.90-15,420,638.31

Finding the Fourth Proportional to 25,210,913.30, 34,790,587.90 and 15,420,638.31

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Solution

The fourth proportional to 25,210,913.30, 34,790,587.90 and 15,420,638.31 is: 21,280,191.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,210,913.30 : 34,790,587.90 = 15,420,638.31 : x
  2. Step 2: Convert to fraction form
    25,210,913.30/34,790,587.90 = 15,420,638.31/x
  3. Step 3: Cross multiply
    25,210,913.30x = 34,790,587.90 × 15,420,638.31
  4. Step 4: Simplify right side
    25,210,913.30x = 536,493,072,429,146.19
  5. Step 5: Solve for x
    x = 536,493,072,429,146.19/25,210,913.30
  6. Step 6: Final answer
    x = 21,280,191.88

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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.