Home / 12,145,278.63-18,221,107.95-4,364,978.15

Finding the Fourth Proportional to 12,145,278.63, 18,221,107.95 and 4,364,978.15

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Solution

The fourth proportional to 12,145,278.63, 18,221,107.95 and 4,364,978.15 is: 6,548,613.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,145,278.63 : 18,221,107.95 = 4,364,978.15 : x
  2. Step 2: Convert to fraction form
    12,145,278.63/18,221,107.95 = 4,364,978.15/x
  3. Step 3: Cross multiply
    12,145,278.63x = 18,221,107.95 × 4,364,978.15
  4. Step 4: Simplify right side
    12,145,278.63x = 79,534,738,070,541.30
  5. Step 5: Solve for x
    x = 79,534,738,070,541.30/12,145,278.63
  6. Step 6: Final answer
    x = 6,548,613.70

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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.