Home / 21,595,356.96-29,801,946.80-12,894,289.92

Finding the Fourth Proportional to 21,595,356.96, 29,801,946.80 and 12,894,289.92

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Solution

The fourth proportional to 21,595,356.96, 29,801,946.80 and 12,894,289.92 is: 17,794,331.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,595,356.96 : 29,801,946.80 = 12,894,289.92 : x
  2. Step 2: Convert to fraction form
    21,595,356.96/29,801,946.80 = 12,894,289.92/x
  3. Step 3: Cross multiply
    21,595,356.96x = 29,801,946.80 × 12,894,289.92
  4. Step 4: Simplify right side
    21,595,356.96x = 384,274,942,219,616.25
  5. Step 5: Solve for x
    x = 384,274,942,219,616.25/21,595,356.96
  6. Step 6: Final answer
    x = 17,794,331.57

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1.5x scale

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.