Home / 20,553,490.68-28,361,750.04-11,384,420.28

Finding the Fourth Proportional to 20,553,490.68, 28,361,750.04 and 11,384,420.28

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Solution

The fourth proportional to 20,553,490.68, 28,361,750.04 and 11,384,420.28 is: 15,709,355.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,553,490.68 : 28,361,750.04 = 11,384,420.28 : x
  2. Step 2: Convert to fraction form
    20,553,490.68/28,361,750.04 = 11,384,420.28/x
  3. Step 3: Cross multiply
    20,553,490.68x = 28,361,750.04 × 11,384,420.28
  4. Step 4: Simplify right side
    20,553,490.68x = 322,882,082,331,666.81
  5. Step 5: Solve for x
    x = 322,882,082,331,666.81/20,553,490.68
  6. Step 6: Final answer
    x = 15,709,355.04

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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.