Home / 99,877,018.11-137,824,725.30-55,220,408.43

Finding the Fourth Proportional to 99,877,018.11, 137,824,725.30 and 55,220,408.43

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Solution

The fourth proportional to 99,877,018.11, 137,824,725.30 and 55,220,408.43 is: 76,201,089.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,877,018.11 : 137,824,725.30 = 55,220,408.43 : x
  2. Step 2: Convert to fraction form
    99,877,018.11/137,824,725.30 = 55,220,408.43/x
  3. Step 3: Cross multiply
    99,877,018.11x = 137,824,725.30 × 55,220,408.43
  4. Step 4: Simplify right side
    99,877,018.11x = 7,610,737,622,818,555
  5. Step 5: Solve for x
    x = 7,610,737,622,818,555/99,877,018.11
  6. Step 6: Final answer
    x = 76,201,089.77

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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.