Home / 1,210,157,561.39-1,815,764,336.87-423,775,625.81

Finding the Fourth Proportional to 1,210,157,561.39, 1,815,764,336.87 and 423,775,625.81

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Solution

The fourth proportional to 1,210,157,561.39, 1,815,764,336.87 and 423,775,625.81 is: 635,848,333.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,157,561.39 : 1,815,764,336.87 = 423,775,625.81 : x
  2. Step 2: Convert to fraction form
    1,210,157,561.39/1,815,764,336.87 = 423,775,625.81/x
  3. Step 3: Cross multiply
    1,210,157,561.39x = 1,815,764,336.87 × 423,775,625.81
  4. Step 4: Simplify right side
    1,210,157,561.39x = 769,476,668,169,366,272
  5. Step 5: Solve for x
    x = 769,476,668,169,366,272/1,210,157,561.39
  6. Step 6: Final answer
    x = 635,848,333.08

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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.