Home / 86,814,147.79-130,193,785.09-28,512,220.17

Finding the Fourth Proportional to 86,814,147.79, 130,193,785.09 and 28,512,220.17

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Solution

The fourth proportional to 86,814,147.79, 130,193,785.09 and 28,512,220.17 is: 42,759,319.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,814,147.79 : 130,193,785.09 = 28,512,220.17 : x
  2. Step 2: Convert to fraction form
    86,814,147.79/130,193,785.09 = 28,512,220.17/x
  3. Step 3: Cross multiply
    86,814,147.79x = 130,193,785.09 × 28,512,220.17
  4. Step 4: Simplify right side
    86,814,147.79x = 3,712,113,865,251,743.50
  5. Step 5: Solve for x
    x = 3,712,113,865,251,743.50/86,814,147.79
  6. Step 6: Final answer
    x = 42,759,319.30

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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.