Home / 139,377,211.44-209,065,442.40-51,936,737.82

Finding the Fourth Proportional to 139,377,211.44, 209,065,442.40 and 51,936,737.82

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Solution

The fourth proportional to 139,377,211.44, 209,065,442.40 and 51,936,737.82 is: 77,904,967.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,377,211.44 : 209,065,442.40 = 51,936,737.82 : x
  2. Step 2: Convert to fraction form
    139,377,211.44/209,065,442.40 = 51,936,737.82/x
  3. Step 3: Cross multiply
    139,377,211.44x = 209,065,442.40 × 51,936,737.82
  4. Step 4: Simplify right side
    139,377,211.44x = 10,858,177,069,151,112
  5. Step 5: Solve for x
    x = 10,858,177,069,151,112/139,377,211.44
  6. Step 6: Final answer
    x = 77,904,967.08

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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.