Home / 12,492,078.30-18,738,117.45-3,973,275.90

Finding the Fourth Proportional to 12,492,078.30, 18,738,117.45 and 3,973,275.90

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Solution

The fourth proportional to 12,492,078.30, 18,738,117.45 and 3,973,275.90 is: 5,959,913.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,492,078.30 : 18,738,117.45 = 3,973,275.90 : x
  2. Step 2: Convert to fraction form
    12,492,078.30/18,738,117.45 = 3,973,275.90/x
  3. Step 3: Cross multiply
    12,492,078.30x = 18,738,117.45 × 3,973,275.90
  4. Step 4: Simplify right side
    12,492,078.30x = 74,451,710,475,454.45
  5. Step 5: Solve for x
    x = 74,451,710,475,454.45/12,492,078.30
  6. Step 6: Final answer
    x = 5,959,913.85

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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.