Home / 85,839,475.20-128,782,022.40-37,296,499.20

Finding the Fourth Proportional to 85,839,475.20, 128,782,022.40 and 37,296,499.20

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Solution

The fourth proportional to 85,839,475.20, 128,782,022.40 and 37,296,499.20 is: 55,954,659.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,839,475.20 : 128,782,022.40 = 37,296,499.20 : x
  2. Step 2: Convert to fraction form
    85,839,475.20/128,782,022.40 = 37,296,499.20/x
  3. Step 3: Cross multiply
    85,839,475.20x = 128,782,022.40 × 37,296,499.20
  4. Step 4: Simplify right side
    85,839,475.20x = 4,803,118,595,415,983
  5. Step 5: Solve for x
    x = 4,803,118,595,415,983/85,839,475.20
  6. Step 6: Final answer
    x = 55,954,659.37

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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.