Home / 865,204,715.19-1,297,807,087.81-210,151,327.47

Finding the Fourth Proportional to 865,204,715.19, 1,297,807,087.81 and 210,151,327.47

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Solution

The fourth proportional to 865,204,715.19, 1,297,807,087.81 and 210,151,327.47 is: 315,226,994.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,204,715.19 : 1,297,807,087.81 = 210,151,327.47 : x
  2. Step 2: Convert to fraction form
    865,204,715.19/1,297,807,087.81 = 210,151,327.47/x
  3. Step 3: Cross multiply
    865,204,715.19x = 1,297,807,087.81 × 210,151,327.47
  4. Step 4: Simplify right side
    865,204,715.19x = 272,735,882,303,246,336
  5. Step 5: Solve for x
    x = 272,735,882,303,246,336/865,204,715.19
  6. Step 6: Final answer
    x = 315,226,994.86

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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.