Home / 86,930,415.20-130,395,622.80-52,351,320.80

Finding the Fourth Proportional to 86,930,415.20, 130,395,622.80 and 52,351,320.80

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Solution

The fourth proportional to 86,930,415.20, 130,395,622.80 and 52,351,320.80 is: 78,526,981.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,930,415.20 : 130,395,622.80 = 52,351,320.80 : x
  2. Step 2: Convert to fraction form
    86,930,415.20/130,395,622.80 = 52,351,320.80/x
  3. Step 3: Cross multiply
    86,930,415.20x = 130,395,622.80 × 52,351,320.80
  4. Step 4: Simplify right side
    86,930,415.20x = 6,826,383,080,118,594
  5. Step 5: Solve for x
    x = 6,826,383,080,118,594/86,930,415.20
  6. Step 6: Final answer
    x = 78,526,981.20

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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.