Home / 86,157,081.80-129,235,622.70-61,970,611.40

Finding the Fourth Proportional to 86,157,081.80, 129,235,622.70 and 61,970,611.40

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Solution

The fourth proportional to 86,157,081.80, 129,235,622.70 and 61,970,611.40 is: 92,955,917.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,157,081.80 : 129,235,622.70 = 61,970,611.40 : x
  2. Step 2: Convert to fraction form
    86,157,081.80/129,235,622.70 = 61,970,611.40/x
  3. Step 3: Cross multiply
    86,157,081.80x = 129,235,622.70 × 61,970,611.40
  4. Step 4: Simplify right side
    86,157,081.80x = 8,008,810,553,378,719
  5. Step 5: Solve for x
    x = 8,008,810,553,378,719/86,157,081.80
  6. Step 6: Final answer
    x = 92,955,917.10

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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.