Home / 1,186,870,845.40-1,638,179,407.80-806,037,258.64

Finding the Fourth Proportional to 1,186,870,845.40, 1,638,179,407.80 and 806,037,258.64

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Solution

The fourth proportional to 1,186,870,845.40, 1,638,179,407.80 and 806,037,258.64 is: 1,112,533,553.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,870,845.40 : 1,638,179,407.80 = 806,037,258.64 : x
  2. Step 2: Convert to fraction form
    1,186,870,845.40/1,638,179,407.80 = 806,037,258.64/x
  3. Step 3: Cross multiply
    1,186,870,845.40x = 1,638,179,407.80 × 806,037,258.64
  4. Step 4: Simplify right side
    1,186,870,845.40x = 1,320,433,639,023,610,624
  5. Step 5: Solve for x
    x = 1,320,433,639,023,610,624/1,186,870,845.40
  6. Step 6: Final answer
    x = 1,112,533,553.37

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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.