Home / 280,254,553.28-420,458,525.58-134,809,780.40

Finding the Fourth Proportional to 280,254,553.28, 420,458,525.58 and 134,809,780.40

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Solution

The fourth proportional to 280,254,553.28, 420,458,525.58 and 134,809,780.40 is: 202,251,563.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,254,553.28 : 420,458,525.58 = 134,809,780.40 : x
  2. Step 2: Convert to fraction form
    280,254,553.28/420,458,525.58 = 134,809,780.40/x
  3. Step 3: Cross multiply
    280,254,553.28x = 420,458,525.58 × 134,809,780.40
  4. Step 4: Simplify right side
    280,254,553.28x = 56,681,921,500,747,584
  5. Step 5: Solve for x
    x = 56,681,921,500,747,584/280,254,553.28
  6. Step 6: Final answer
    x = 202,251,563.22

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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.