Home / 402,422,014.38-603,632,268.14-126,094,382.72

Finding the Fourth Proportional to 402,422,014.38, 603,632,268.14 and 126,094,382.72

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Solution

The fourth proportional to 402,422,014.38, 603,632,268.14 and 126,094,382.72 is: 189,141,337.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,422,014.38 : 603,632,268.14 = 126,094,382.72 : x
  2. Step 2: Convert to fraction form
    402,422,014.38/603,632,268.14 = 126,094,382.72/x
  3. Step 3: Cross multiply
    402,422,014.38x = 603,632,268.14 × 126,094,382.72
  4. Step 4: Simplify right side
    402,422,014.38x = 76,114,638,237,338,192
  5. Step 5: Solve for x
    x = 76,114,638,237,338,192/402,422,014.38
  6. Step 6: Final answer
    x = 189,141,337.99

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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.