Home / 38,660,418.64-53,349,942.90-21,255,728.32

Finding the Fourth Proportional to 38,660,418.64, 53,349,942.90 and 21,255,728.32

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Solution

The fourth proportional to 38,660,418.64, 53,349,942.90 and 21,255,728.32 is: 29,332,116.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,660,418.64 : 53,349,942.90 = 21,255,728.32 : x
  2. Step 2: Convert to fraction form
    38,660,418.64/53,349,942.90 = 21,255,728.32/x
  3. Step 3: Cross multiply
    38,660,418.64x = 53,349,942.90 × 21,255,728.32
  4. Step 4: Simplify right side
    38,660,418.64x = 1,133,991,892,169,913
  5. Step 5: Solve for x
    x = 1,133,991,892,169,913/38,660,418.64
  6. Step 6: Final answer
    x = 29,332,116.21

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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.