Home / 280,908,049.20-421,362,073.80-235,558,417.20

Finding the Fourth Proportional to 280,908,049.20, 421,362,073.80 and 235,558,417.20

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Solution

The fourth proportional to 280,908,049.20, 421,362,073.80 and 235,558,417.20 is: 353,337,625.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,908,049.20 : 421,362,073.80 = 235,558,417.20 : x
  2. Step 2: Convert to fraction form
    280,908,049.20/421,362,073.80 = 235,558,417.20/x
  3. Step 3: Cross multiply
    280,908,049.20x = 421,362,073.80 × 235,558,417.20
  4. Step 4: Simplify right side
    280,908,049.20x = 99,255,383,172,437,584
  5. Step 5: Solve for x
    x = 99,255,383,172,437,584/280,908,049.20
  6. Step 6: Final answer
    x = 353,337,625.80

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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.