Home / 284,251,861.90-426,313,334.54-128,702,984.04

Finding the Fourth Proportional to 284,251,861.90, 426,313,334.54 and 128,702,984.04

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Solution

The fourth proportional to 284,251,861.90, 426,313,334.54 and 128,702,984.04 is: 193,025,290.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,251,861.90 : 426,313,334.54 = 128,702,984.04 : x
  2. Step 2: Convert to fraction form
    284,251,861.90/426,313,334.54 = 128,702,984.04/x
  3. Step 3: Cross multiply
    284,251,861.90x = 426,313,334.54 × 128,702,984.04
  4. Step 4: Simplify right side
    284,251,861.90x = 54,867,798,291,340,808
  5. Step 5: Solve for x
    x = 54,867,798,291,340,808/284,251,861.90
  6. Step 6: Final answer
    x = 193,025,290.76

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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.