Home / 86,330,139.40-129,263,160.52-65,761,878.03

Finding the Fourth Proportional to 86,330,139.40, 129,263,160.52 and 65,761,878.03

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Solution

The fourth proportional to 86,330,139.40, 129,263,160.52 and 65,761,878.03 is: 98,466,054.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,330,139.40 : 129,263,160.52 = 65,761,878.03 : x
  2. Step 2: Convert to fraction form
    86,330,139.40/129,263,160.52 = 65,761,878.03/x
  3. Step 3: Cross multiply
    86,330,139.40x = 129,263,160.52 × 65,761,878.03
  4. Step 4: Simplify right side
    86,330,139.40x = 8,500,588,195,888,551
  5. Step 5: Solve for x
    x = 8,500,588,195,888,551/86,330,139.40
  6. Step 6: Final answer
    x = 98,466,054.32

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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.