Home / 77,294,494.76-106,665,774.01-42,486,815.12

Finding the Fourth Proportional to 77,294,494.76, 106,665,774.01 and 42,486,815.12

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Solution

The fourth proportional to 77,294,494.76, 106,665,774.01 and 42,486,815.12 is: 58,631,459.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,294,494.76 : 106,665,774.01 = 42,486,815.12 : x
  2. Step 2: Convert to fraction form
    77,294,494.76/106,665,774.01 = 42,486,815.12/x
  3. Step 3: Cross multiply
    77,294,494.76x = 106,665,774.01 × 42,486,815.12
  4. Step 4: Simplify right side
    77,294,494.76x = 4,531,889,019,355,025
  5. Step 5: Solve for x
    x = 4,531,889,019,355,025/77,294,494.76
  6. Step 6: Final answer
    x = 58,631,459.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.