Home / 99,877,018.49-137,824,725.80-55,220,408.82

Finding the Fourth Proportional to 99,877,018.49, 137,824,725.80 and 55,220,408.82

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Solution

The fourth proportional to 99,877,018.49, 137,824,725.80 and 55,220,408.82 is: 76,201,090.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,877,018.49 : 137,824,725.80 = 55,220,408.82 : x
  2. Step 2: Convert to fraction form
    99,877,018.49/137,824,725.80 = 55,220,408.82/x
  3. Step 3: Cross multiply
    99,877,018.49x = 137,824,725.80 × 55,220,408.82
  4. Step 4: Simplify right side
    99,877,018.49x = 7,610,737,704,318,453
  5. Step 5: Solve for x
    x = 7,610,737,704,318,453/99,877,018.49
  6. Step 6: Final answer
    x = 76,201,090.30

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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.