Home / 99,010,640.70-148,515,961.05-90,500,586.30

Finding the Fourth Proportional to 99,010,640.70, 148,515,961.05 and 90,500,586.30

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Solution

The fourth proportional to 99,010,640.70, 148,515,961.05 and 90,500,586.30 is: 135,750,879.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,010,640.70 : 148,515,961.05 = 90,500,586.30 : x
  2. Step 2: Convert to fraction form
    99,010,640.70/148,515,961.05 = 90,500,586.30/x
  3. Step 3: Cross multiply
    99,010,640.70x = 148,515,961.05 × 90,500,586.30
  4. Step 4: Simplify right side
    99,010,640.70x = 13,440,781,549,932,964
  5. Step 5: Solve for x
    x = 13,440,781,549,932,964/99,010,640.70
  6. Step 6: Final answer
    x = 135,750,879.45

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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.