Home / 212,751,647.28-319,103,545.14-57,316,942.98

Finding the Fourth Proportional to 212,751,647.28, 319,103,545.14 and 57,316,942.98

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Solution

The fourth proportional to 212,751,647.28, 319,103,545.14 and 57,316,942.98 is: 85,968,968.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,751,647.28 : 319,103,545.14 = 57,316,942.98 : x
  2. Step 2: Convert to fraction form
    212,751,647.28/319,103,545.14 = 57,316,942.98/x
  3. Step 3: Cross multiply
    212,751,647.28x = 319,103,545.14 × 57,316,942.98
  4. Step 4: Simplify right side
    212,751,647.28x = 18,290,039,701,505,236
  5. Step 5: Solve for x
    x = 18,290,039,701,505,236/212,751,647.28
  6. Step 6: Final answer
    x = 85,968,968.68

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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.