Home / 1,188,283,997.32-1,639,749,627.06-659,606,342.92

Finding the Fourth Proportional to 1,188,283,997.32, 1,639,749,627.06 and 659,606,342.92

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Solution

The fourth proportional to 1,188,283,997.32, 1,639,749,627.06 and 659,606,342.92 is: 910,211,075.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,283,997.32 : 1,639,749,627.06 = 659,606,342.92 : x
  2. Step 2: Convert to fraction form
    1,188,283,997.32/1,639,749,627.06 = 659,606,342.92/x
  3. Step 3: Cross multiply
    1,188,283,997.32x = 1,639,749,627.06 × 659,606,342.92
  4. Step 4: Simplify right side
    1,188,283,997.32x = 1,081,589,254,809,480,320
  5. Step 5: Solve for x
    x = 1,081,589,254,809,480,320/1,188,283,997.32
  6. Step 6: Final answer
    x = 910,211,075.17

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Double scale
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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.