Home / 990,882,749.37-1,366,148,821.57-811,606,193.33

Finding the Fourth Proportional to 990,882,749.37, 1,366,148,821.57 and 811,606,193.33

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Solution

The fourth proportional to 990,882,749.37, 1,366,148,821.57 and 811,606,193.33 is: 1,118,976,836.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,882,749.37 : 1,366,148,821.57 = 811,606,193.33 : x
  2. Step 2: Convert to fraction form
    990,882,749.37/1,366,148,821.57 = 811,606,193.33/x
  3. Step 3: Cross multiply
    990,882,749.37x = 1,366,148,821.57 × 811,606,193.33
  4. Step 4: Simplify right side
    990,882,749.37x = 1,108,774,844,590,836,224
  5. Step 5: Solve for x
    x = 1,108,774,844,590,836,224/990,882,749.37
  6. Step 6: Final answer
    x = 1,118,976,836.87

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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.