Home / 28,209,940.20-42,405,111.90-26,213,063.40

Finding the Fourth Proportional to 28,209,940.20, 42,405,111.90 and 26,213,063.40

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Solution

The fourth proportional to 28,209,940.20, 42,405,111.90 and 26,213,063.40 is: 39,403,411.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,209,940.20 : 42,405,111.90 = 26,213,063.40 : x
  2. Step 2: Convert to fraction form
    28,209,940.20/42,405,111.90 = 26,213,063.40/x
  3. Step 3: Cross multiply
    28,209,940.20x = 42,405,111.90 × 26,213,063.40
  4. Step 4: Simplify right side
    28,209,940.20x = 1,111,567,886,718,794.38
  5. Step 5: Solve for x
    x = 1,111,567,886,718,794.38/28,209,940.20
  6. Step 6: Final answer
    x = 39,403,411.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.