Home / 68,099,357.90-102,130,122.94-18,903,900.98

Finding the Fourth Proportional to 68,099,357.90, 102,130,122.94 and 18,903,900.98

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Solution

The fourth proportional to 68,099,357.90, 102,130,122.94 and 18,903,900.98 is: 28,350,601.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,099,357.90 : 102,130,122.94 = 18,903,900.98 : x
  2. Step 2: Convert to fraction form
    68,099,357.90/102,130,122.94 = 18,903,900.98/x
  3. Step 3: Cross multiply
    68,099,357.90x = 102,130,122.94 × 18,903,900.98
  4. Step 4: Simplify right side
    68,099,357.90x = 1,930,657,731,341,052.25
  5. Step 5: Solve for x
    x = 1,930,657,731,341,052.25/68,099,357.90
  6. Step 6: Final answer
    x = 28,350,601.10

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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.