Home / 1,123,731,775.88-1,550,753,168.52-621,975,409.38

Finding the Fourth Proportional to 1,123,731,775.88, 1,550,753,168.52 and 621,975,409.38

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Solution

The fourth proportional to 1,123,731,775.88, 1,550,753,168.52 and 621,975,409.38 is: 858,327,901.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,731,775.88 : 1,550,753,168.52 = 621,975,409.38 : x
  2. Step 2: Convert to fraction form
    1,123,731,775.88/1,550,753,168.52 = 621,975,409.38/x
  3. Step 3: Cross multiply
    1,123,731,775.88x = 1,550,753,168.52 × 621,975,409.38
  4. Step 4: Simplify right side
    1,123,731,775.88x = 964,530,336,837,559,168
  5. Step 5: Solve for x
    x = 964,530,336,837,559,168/1,123,731,775.88
  6. Step 6: Final answer
    x = 858,327,901.32

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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.