Home / 107,350,800.70-161,026,201.05-90,722,602.30

Finding the Fourth Proportional to 107,350,800.70, 161,026,201.05 and 90,722,602.30

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Solution

The fourth proportional to 107,350,800.70, 161,026,201.05 and 90,722,602.30 is: 136,083,903.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,350,800.70 : 161,026,201.05 = 90,722,602.30 : x
  2. Step 2: Convert to fraction form
    107,350,800.70/161,026,201.05 = 90,722,602.30/x
  3. Step 3: Cross multiply
    107,350,800.70x = 161,026,201.05 × 90,722,602.30
  4. Step 4: Simplify right side
    107,350,800.70x = 14,608,715,997,738,994
  5. Step 5: Solve for x
    x = 14,608,715,997,738,994/107,350,800.70
  6. Step 6: Final answer
    x = 136,083,903.45

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Double scale
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Similar ratio
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1.5x scale

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.