Home / 20,152,579-27,809,168.88-11,333,348.32

Finding the Fourth Proportional to 20,152,579, 27,809,168.88 and 11,333,348.32

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Solution

The fourth proportional to 20,152,579, 27,809,168.88 and 11,333,348.32 is: 15,639,238.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,152,579 : 27,809,168.88 = 11,333,348.32 : x
  2. Step 2: Convert to fraction form
    20,152,579/27,809,168.88 = 11,333,348.32/x
  3. Step 3: Cross multiply
    20,152,579x = 27,809,168.88 × 11,333,348.32
  4. Step 4: Simplify right side
    20,152,579x = 315,170,997,406,744.25
  5. Step 5: Solve for x
    x = 315,170,997,406,744.25/20,152,579
  6. Step 6: Final answer
    x = 15,639,238.90

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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.