Home / 86,370,628.59-129,555,942.88-28,862,899.75

Finding the Fourth Proportional to 86,370,628.59, 129,555,942.88 and 28,862,899.75

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Solution

The fourth proportional to 86,370,628.59, 129,555,942.88 and 28,862,899.75 is: 43,294,349.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,370,628.59 : 129,555,942.88 = 28,862,899.75 : x
  2. Step 2: Convert to fraction form
    86,370,628.59/129,555,942.88 = 28,862,899.75/x
  3. Step 3: Cross multiply
    86,370,628.59x = 129,555,942.88 × 28,862,899.75
  4. Step 4: Simplify right side
    86,370,628.59x = 3,739,360,191,667,879
  5. Step 5: Solve for x
    x = 3,739,360,191,667,879/86,370,628.59
  6. Step 6: Final answer
    x = 43,294,349.63

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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.