Home / 152,989,979.40-211,120,012.26-83,373,865.56

Finding the Fourth Proportional to 152,989,979.40, 211,120,012.26 and 83,373,865.56

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Solution

The fourth proportional to 152,989,979.40, 211,120,012.26 and 83,373,865.56 is: 115,052,577.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,989,979.40 : 211,120,012.26 = 83,373,865.56 : x
  2. Step 2: Convert to fraction form
    152,989,979.40/211,120,012.26 = 83,373,865.56/x
  3. Step 3: Cross multiply
    152,989,979.40x = 211,120,012.26 × 83,373,865.56
  4. Step 4: Simplify right side
    152,989,979.40x = 17,601,891,519,190,792
  5. Step 5: Solve for x
    x = 17,601,891,519,190,792/152,989,979.40
  6. Step 6: Final answer
    x = 115,052,577.88

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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.