Home / 499,873,705.54-689,784,774.58-285,291,292.12

Finding the Fourth Proportional to 499,873,705.54, 689,784,774.58 and 285,291,292.12

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Solution

The fourth proportional to 499,873,705.54, 689,784,774.58 and 285,291,292.12 is: 393,678,618.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,873,705.54 : 689,784,774.58 = 285,291,292.12 : x
  2. Step 2: Convert to fraction form
    499,873,705.54/689,784,774.58 = 285,291,292.12/x
  3. Step 3: Cross multiply
    499,873,705.54x = 689,784,774.58 × 285,291,292.12
  4. Step 4: Simplify right side
    499,873,705.54x = 196,789,589,624,631,136
  5. Step 5: Solve for x
    x = 196,789,589,624,631,136/499,873,705.54
  6. Step 6: Final answer
    x = 393,678,618.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.