Home / 280,127,723.09-420,248,274.30-98,389,072.85

Finding the Fourth Proportional to 280,127,723.09, 420,248,274.30 and 98,389,072.85

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Solution

The fourth proportional to 280,127,723.09, 420,248,274.30 and 98,389,072.85 is: 147,603,520.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,127,723.09 : 420,248,274.30 = 98,389,072.85 : x
  2. Step 2: Convert to fraction form
    280,127,723.09/420,248,274.30 = 98,389,072.85/x
  3. Step 3: Cross multiply
    280,127,723.09x = 420,248,274.30 × 98,389,072.85
  4. Step 4: Simplify right side
    280,127,723.09x = 41,347,838,073,088,240
  5. Step 5: Solve for x
    x = 41,347,838,073,088,240/280,127,723.09
  6. Step 6: Final answer
    x = 147,603,520.34

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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.