Home / 85,869,149.12-128,478,700.48-50,873,059.52

Finding the Fourth Proportional to 85,869,149.12, 128,478,700.48 and 50,873,059.52

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Solution

The fourth proportional to 85,869,149.12, 128,478,700.48 and 50,873,059.52 is: 76,117,029.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,869,149.12 : 128,478,700.48 = 50,873,059.52 : x
  2. Step 2: Convert to fraction form
    85,869,149.12/128,478,700.48 = 50,873,059.52/x
  3. Step 3: Cross multiply
    85,869,149.12x = 128,478,700.48 × 50,873,059.52
  4. Step 4: Simplify right side
    85,869,149.12x = 6,536,104,576,571,293
  5. Step 5: Solve for x
    x = 6,536,104,576,571,293/85,869,149.12
  6. Step 6: Final answer
    x = 76,117,029.73

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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.