Home / 157,190,011.20-235,785,016.80-99,794,383.20

Finding the Fourth Proportional to 157,190,011.20, 235,785,016.80 and 99,794,383.20

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Solution

The fourth proportional to 157,190,011.20, 235,785,016.80 and 99,794,383.20 is: 149,691,574.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,190,011.20 : 235,785,016.80 = 99,794,383.20 : x
  2. Step 2: Convert to fraction form
    157,190,011.20/235,785,016.80 = 99,794,383.20/x
  3. Step 3: Cross multiply
    157,190,011.20x = 235,785,016.80 × 99,794,383.20
  4. Step 4: Simplify right side
    157,190,011.20x = 23,530,020,319,357,640
  5. Step 5: Solve for x
    x = 23,530,020,319,357,640/157,190,011.20
  6. Step 6: Final answer
    x = 149,691,574.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.