Home / 21,138,852.70-31,696,739.88-6,364,792.90

Finding the Fourth Proportional to 21,138,852.70, 31,696,739.88 and 6,364,792.90

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Solution

The fourth proportional to 21,138,852.70, 31,696,739.88 and 6,364,792.90 is: 9,543,714.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,138,852.70 : 31,696,739.88 = 6,364,792.90 : x
  2. Step 2: Convert to fraction form
    21,138,852.70/31,696,739.88 = 6,364,792.90/x
  3. Step 3: Cross multiply
    21,138,852.70x = 31,696,739.88 × 6,364,792.90
  4. Step 4: Simplify right side
    21,138,852.70x = 201,743,184,941,370.84
  5. Step 5: Solve for x
    x = 201,743,184,941,370.84/21,138,852.70
  6. Step 6: Final answer
    x = 9,543,714.97

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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.