Home / 99,778,913.10-149,724,356.85-42,261,396.30

Finding the Fourth Proportional to 99,778,913.10, 149,724,356.85 and 42,261,396.30

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Solution

The fourth proportional to 99,778,913.10, 149,724,356.85 and 42,261,396.30 is: 63,415,807.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,778,913.10 : 149,724,356.85 = 42,261,396.30 : x
  2. Step 2: Convert to fraction form
    99,778,913.10/149,724,356.85 = 42,261,396.30/x
  3. Step 3: Cross multiply
    99,778,913.10x = 149,724,356.85 × 42,261,396.30
  4. Step 4: Simplify right side
    99,778,913.10x = 6,327,560,380,600,469
  5. Step 5: Solve for x
    x = 6,327,560,380,600,469/99,778,913.10
  6. Step 6: Final answer
    x = 63,415,807.85

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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.