Home / 120,091,385.70-180,072,345.96-64,788,872.49

Finding the Fourth Proportional to 120,091,385.70, 180,072,345.96 and 64,788,872.49

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Solution

The fourth proportional to 120,091,385.70, 180,072,345.96 and 64,788,872.49 is: 97,148,385.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,091,385.70 : 180,072,345.96 = 64,788,872.49 : x
  2. Step 2: Convert to fraction form
    120,091,385.70/180,072,345.96 = 64,788,872.49/x
  3. Step 3: Cross multiply
    120,091,385.70x = 180,072,345.96 × 64,788,872.49
  4. Step 4: Simplify right side
    120,091,385.70x = 11,666,684,261,377,608
  5. Step 5: Solve for x
    x = 11,666,684,261,377,608/120,091,385.70
  6. Step 6: Final answer
    x = 97,148,385.73

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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.