Home / 21,762,623.78-30,032,419.83-11,972,857.95

Finding the Fourth Proportional to 21,762,623.78, 30,032,419.83 and 11,972,857.95

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Solution

The fourth proportional to 21,762,623.78, 30,032,419.83 and 11,972,857.95 is: 16,522,543.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,762,623.78 : 30,032,419.83 = 11,972,857.95 : x
  2. Step 2: Convert to fraction form
    21,762,623.78/30,032,419.83 = 11,972,857.95/x
  3. Step 3: Cross multiply
    21,762,623.78x = 30,032,419.83 × 11,972,857.95
  4. Step 4: Simplify right side
    21,762,623.78x = 359,573,896,459,488.81
  5. Step 5: Solve for x
    x = 359,573,896,459,488.81/21,762,623.78
  6. Step 6: Final answer
    x = 16,522,543.43

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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.