Home / 89,169,639.40-133,628,487.90-65,959,445.80

Finding the Fourth Proportional to 89,169,639.40, 133,628,487.90 and 65,959,445.80

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Solution

The fourth proportional to 89,169,639.40, 133,628,487.90 and 65,959,445.80 is: 98,845,986.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,169,639.40 : 133,628,487.90 = 65,959,445.80 : x
  2. Step 2: Convert to fraction form
    89,169,639.40/133,628,487.90 = 65,959,445.80/x
  3. Step 3: Cross multiply
    89,169,639.40x = 133,628,487.90 × 65,959,445.80
  4. Step 4: Simplify right side
    89,169,639.40x = 8,814,061,004,976,006
  5. Step 5: Solve for x
    x = 8,814,061,004,976,006/89,169,639.40
  6. Step 6: Final answer
    x = 98,845,986.87

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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.