Home / 153,761,626.89-212,190,906.75-86,794,683.85

Finding the Fourth Proportional to 153,761,626.89, 212,190,906.75 and 86,794,683.85

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Solution

The fourth proportional to 153,761,626.89, 212,190,906.75 and 86,794,683.85 is: 119,776,585.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,761,626.89 : 212,190,906.75 = 86,794,683.85 : x
  2. Step 2: Convert to fraction form
    153,761,626.89/212,190,906.75 = 86,794,683.85/x
  3. Step 3: Cross multiply
    153,761,626.89x = 212,190,906.75 × 86,794,683.85
  4. Step 4: Simplify right side
    153,761,626.89x = 18,417,042,666,777,108
  5. Step 5: Solve for x
    x = 18,417,042,666,777,108/153,761,626.89
  6. Step 6: Final answer
    x = 119,776,585.61

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1.5x scale

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.