Home / 85,507,106.58-128,214,519.96-38,795,097.48

Finding the Fourth Proportional to 85,507,106.58, 128,214,519.96 and 38,795,097.48

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Solution

The fourth proportional to 85,507,106.58, 128,214,519.96 and 38,795,097.48 is: 58,171,712.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,507,106.58 : 128,214,519.96 = 38,795,097.48 : x
  2. Step 2: Convert to fraction form
    85,507,106.58/128,214,519.96 = 38,795,097.48/x
  3. Step 3: Cross multiply
    85,507,106.58x = 128,214,519.96 × 38,795,097.48
  4. Step 4: Simplify right side
    85,507,106.58x = 4,974,094,800,199,605
  5. Step 5: Solve for x
    x = 4,974,094,800,199,605/85,507,106.58
  6. Step 6: Final answer
    x = 58,171,712.26

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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.