Home / 917,982,358.85-1,377,379,204.91-481,178,600.66

Finding the Fourth Proportional to 917,982,358.85, 1,377,379,204.91 and 481,178,600.66

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Solution

The fourth proportional to 917,982,358.85, 1,377,379,204.91 and 481,178,600.66 is: 721,980,539.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,982,358.85 : 1,377,379,204.91 = 481,178,600.66 : x
  2. Step 2: Convert to fraction form
    917,982,358.85/1,377,379,204.91 = 481,178,600.66/x
  3. Step 3: Cross multiply
    917,982,358.85x = 1,377,379,204.91 × 481,178,600.66
  4. Step 4: Simplify right side
    917,982,358.85x = 662,765,398,387,484,416
  5. Step 5: Solve for x
    x = 662,765,398,387,484,416/917,982,358.85
  6. Step 6: Final answer
    x = 721,980,539.17

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1.5x scale

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.