Home / 85,468,615.06-128,330,993.43-73,989,489.46

Finding the Fourth Proportional to 85,468,615.06, 128,330,993.43 and 73,989,489.46

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Solution

The fourth proportional to 85,468,615.06, 128,330,993.43 and 73,989,489.46 is: 111,095,104.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,468,615.06 : 128,330,993.43 = 73,989,489.46 : x
  2. Step 2: Convert to fraction form
    85,468,615.06/128,330,993.43 = 73,989,489.46/x
  3. Step 3: Cross multiply
    85,468,615.06x = 128,330,993.43 × 73,989,489.46
  4. Step 4: Simplify right side
    85,468,615.06x = 9,495,144,685,780,314
  5. Step 5: Solve for x
    x = 9,495,144,685,780,314/85,468,615.06
  6. Step 6: Final answer
    x = 111,095,104.08

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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.