Home / 21,035,553.92-28,818,571.12-20,248,946.72

Finding the Fourth Proportional to 21,035,553.92, 28,818,571.12 and 20,248,946.72

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Solution

The fourth proportional to 21,035,553.92, 28,818,571.12 and 20,248,946.72 is: 27,740,924.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,035,553.92 : 28,818,571.12 = 20,248,946.72 : x
  2. Step 2: Convert to fraction form
    21,035,553.92/28,818,571.12 = 20,248,946.72/x
  3. Step 3: Cross multiply
    21,035,553.92x = 28,818,571.12 × 20,248,946.72
  4. Step 4: Simplify right side
    21,035,553.92x = 583,545,711,155,410.75
  5. Step 5: Solve for x
    x = 583,545,711,155,410.75/21,035,553.92
  6. Step 6: Final answer
    x = 27,740,924.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.