Home / 198,405,533.40-297,658,601.46-140,227,678.68

Finding the Fourth Proportional to 198,405,533.40, 297,658,601.46 and 140,227,678.68

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Solution

The fourth proportional to 198,405,533.40, 297,658,601.46 and 140,227,678.68 is: 210,377,069.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,405,533.40 : 297,658,601.46 = 140,227,678.68 : x
  2. Step 2: Convert to fraction form
    198,405,533.40/297,658,601.46 = 140,227,678.68/x
  3. Step 3: Cross multiply
    198,405,533.40x = 297,658,601.46 × 140,227,678.68
  4. Step 4: Simplify right side
    198,405,533.40x = 41,739,974,721,871,056
  5. Step 5: Solve for x
    x = 41,739,974,721,871,056/198,405,533.40
  6. Step 6: Final answer
    x = 210,377,069.66

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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.