Home / 120,337,046.35-180,453,005.79-42,588,109.73

Finding the Fourth Proportional to 120,337,046.35, 180,453,005.79 and 42,588,109.73

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Solution

The fourth proportional to 120,337,046.35, 180,453,005.79 and 42,588,109.73 is: 63,863,561.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,337,046.35 : 180,453,005.79 = 42,588,109.73 : x
  2. Step 2: Convert to fraction form
    120,337,046.35/180,453,005.79 = 42,588,109.73/x
  3. Step 3: Cross multiply
    120,337,046.35x = 180,453,005.79 × 42,588,109.73
  4. Step 4: Simplify right side
    120,337,046.35x = 7,685,152,411,984,273
  5. Step 5: Solve for x
    x = 7,685,152,411,984,273/120,337,046.35
  6. Step 6: Final answer
    x = 63,863,561.93

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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.