Home / 99,885,912.09-149,829,060.86-38,503,976.32

Finding the Fourth Proportional to 99,885,912.09, 149,829,060.86 and 38,503,976.32

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Solution

The fourth proportional to 99,885,912.09, 149,829,060.86 and 38,503,976.32 is: 57,756,038.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,885,912.09 : 149,829,060.86 = 38,503,976.32 : x
  2. Step 2: Convert to fraction form
    99,885,912.09/149,829,060.86 = 38,503,976.32/x
  3. Step 3: Cross multiply
    99,885,912.09x = 149,829,060.86 × 38,503,976.32
  4. Step 4: Simplify right side
    99,885,912.09x = 5,769,014,611,122,967
  5. Step 5: Solve for x
    x = 5,769,014,611,122,967/99,885,912.09
  6. Step 6: Final answer
    x = 57,756,038.77

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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.