Home / 1,977,509,887.76-2,728,909,708.44-1,085,435,387.12

Finding the Fourth Proportional to 1,977,509,887.76, 2,728,909,708.44 and 1,085,435,387.12

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Solution

The fourth proportional to 1,977,509,887.76, 2,728,909,708.44 and 1,085,435,387.12 is: 1,497,871,228.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,977,509,887.76 : 2,728,909,708.44 = 1,085,435,387.12 : x
  2. Step 2: Convert to fraction form
    1,977,509,887.76/2,728,909,708.44 = 1,085,435,387.12/x
  3. Step 3: Cross multiply
    1,977,509,887.76x = 2,728,909,708.44 × 1,085,435,387.12
  4. Step 4: Simplify right side
    1,977,509,887.76x = 2,962,055,165,796,097,536
  5. Step 5: Solve for x
    x = 2,962,055,165,796,097,536/1,977,509,887.76
  6. Step 6: Final answer
    x = 1,497,871,228.93

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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.