Home / 280,482,927.80-420,731,608.80-132,895,857.20

Finding the Fourth Proportional to 280,482,927.80, 420,731,608.80 and 132,895,857.20

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Solution

The fourth proportional to 280,482,927.80, 420,731,608.80 and 132,895,857.20 is: 199,347,205.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,482,927.80 : 420,731,608.80 = 132,895,857.20 : x
  2. Step 2: Convert to fraction form
    280,482,927.80/420,731,608.80 = 132,895,857.20/x
  3. Step 3: Cross multiply
    280,482,927.80x = 420,731,608.80 × 132,895,857.20
  4. Step 4: Simplify right side
    280,482,927.80x = 55,913,487,802,611,064
  5. Step 5: Solve for x
    x = 55,913,487,802,611,064/280,482,927.80
  6. Step 6: Final answer
    x = 199,347,205.34

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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.