Home / 280,129,076.10-420,193,614.15-276,302,700.90

Finding the Fourth Proportional to 280,129,076.10, 420,193,614.15 and 276,302,700.90

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Solution

The fourth proportional to 280,129,076.10, 420,193,614.15 and 276,302,700.90 is: 414,454,051.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,129,076.10 : 420,193,614.15 = 276,302,700.90 : x
  2. Step 2: Convert to fraction form
    280,129,076.10/420,193,614.15 = 276,302,700.90/x
  3. Step 3: Cross multiply
    280,129,076.10x = 420,193,614.15 × 276,302,700.90
  4. Step 4: Simplify right side
    280,129,076.10x = 116,100,630,490,577,440
  5. Step 5: Solve for x
    x = 116,100,630,490,577,440/280,129,076.10
  6. Step 6: Final answer
    x = 414,454,051.35

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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.