Home / 813,386,911.56-1,122,395,504.92-456,169,190.23

Finding the Fourth Proportional to 813,386,911.56, 1,122,395,504.92 and 456,169,190.23

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Solution

The fourth proportional to 813,386,911.56, 1,122,395,504.92 and 456,169,190.23 is: 629,469,495.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,386,911.56 : 1,122,395,504.92 = 456,169,190.23 : x
  2. Step 2: Convert to fraction form
    813,386,911.56/1,122,395,504.92 = 456,169,190.23/x
  3. Step 3: Cross multiply
    813,386,911.56x = 1,122,395,504.92 × 456,169,190.23
  4. Step 4: Simplify right side
    813,386,911.56x = 512,002,248,597,148,416
  5. Step 5: Solve for x
    x = 512,002,248,597,148,416/813,386,911.56
  6. Step 6: Final answer
    x = 629,469,495.17

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Double scale
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1.5x scale

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.