Home / 99,804,967.85-149,483,502.97-81,889,063.85

Finding the Fourth Proportional to 99,804,967.85, 149,483,502.97 and 81,889,063.85

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Solution

The fourth proportional to 99,804,967.85, 149,483,502.97 and 81,889,063.85 is: 122,649,847.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,804,967.85 : 149,483,502.97 = 81,889,063.85 : x
  2. Step 2: Convert to fraction form
    99,804,967.85/149,483,502.97 = 81,889,063.85/x
  3. Step 3: Cross multiply
    99,804,967.85x = 149,483,502.97 × 81,889,063.85
  4. Step 4: Simplify right side
    99,804,967.85x = 12,241,064,119,231,994
  5. Step 5: Solve for x
    x = 12,241,064,119,231,994/99,804,967.85
  6. Step 6: Final answer
    x = 122,649,847.83

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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.