Home / 38,765,100.57-53,496,197.52-21,362,068.56

Finding the Fourth Proportional to 38,765,100.57, 53,496,197.52 and 21,362,068.56

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Solution

The fourth proportional to 38,765,100.57, 53,496,197.52 and 21,362,068.56 is: 29,479,852.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,765,100.57 : 53,496,197.52 = 21,362,068.56 : x
  2. Step 2: Convert to fraction form
    38,765,100.57/53,496,197.52 = 21,362,068.56/x
  3. Step 3: Cross multiply
    38,765,100.57x = 53,496,197.52 × 21,362,068.56
  4. Step 4: Simplify right side
    38,765,100.57x = 1,142,789,439,121,542
  5. Step 5: Solve for x
    x = 1,142,789,439,121,542/38,765,100.57
  6. Step 6: Final answer
    x = 29,479,852.30

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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.