Home / 21,762,622.55-30,032,418.12-11,972,856.71

Finding the Fourth Proportional to 21,762,622.55, 30,032,418.12 and 11,972,856.71

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Solution

The fourth proportional to 21,762,622.55, 30,032,418.12 and 11,972,856.71 is: 16,522,541.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,762,622.55 : 30,032,418.12 = 11,972,856.71 : x
  2. Step 2: Convert to fraction form
    21,762,622.55/30,032,418.12 = 11,972,856.71/x
  3. Step 3: Cross multiply
    21,762,622.55x = 30,032,418.12 × 11,972,856.71
  4. Step 4: Simplify right side
    21,762,622.55x = 359,573,838,880,648.62
  5. Step 5: Solve for x
    x = 359,573,838,880,648.62/21,762,622.55
  6. Step 6: Final answer
    x = 16,522,541.72

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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.