Home / 208,008,086.60-312,049,454.70-86,851,785.80

Finding the Fourth Proportional to 208,008,086.60, 312,049,454.70 and 86,851,785.80

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Solution

The fourth proportional to 208,008,086.60, 312,049,454.70 and 86,851,785.80 is: 130,293,263.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,008,086.60 : 312,049,454.70 = 86,851,785.80 : x
  2. Step 2: Convert to fraction form
    208,008,086.60/312,049,454.70 = 86,851,785.80/x
  3. Step 3: Cross multiply
    208,008,086.60x = 312,049,454.70 × 86,851,785.80
  4. Step 4: Simplify right side
    208,008,086.60x = 27,102,052,398,611,200
  5. Step 5: Solve for x
    x = 27,102,052,398,611,200/208,008,086.60
  6. Step 6: Final answer
    x = 130,293,263.31

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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.