Home / 280,475,650.84-420,734,624.56-83,723,522.64

Finding the Fourth Proportional to 280,475,650.84, 420,734,624.56 and 83,723,522.64

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Solution

The fourth proportional to 280,475,650.84, 420,734,624.56 and 83,723,522.64 is: 125,591,596.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,475,650.84 : 420,734,624.56 = 83,723,522.64 : x
  2. Step 2: Convert to fraction form
    280,475,650.84/420,734,624.56 = 83,723,522.64/x
  3. Step 3: Cross multiply
    280,475,650.84x = 420,734,624.56 × 83,723,522.64
  4. Step 4: Simplify right side
    280,475,650.84x = 35,225,384,864,781,060
  5. Step 5: Solve for x
    x = 35,225,384,864,781,060/280,475,650.84
  6. Step 6: Final answer
    x = 125,591,596.84

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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.