Home / 1,285,976,694.40-1,774,657,076.16-699,261,631.36

Finding the Fourth Proportional to 1,285,976,694.40, 1,774,657,076.16 and 699,261,631.36

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Solution

The fourth proportional to 1,285,976,694.40, 1,774,657,076.16 and 699,261,631.36 is: 964,986,074.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,976,694.40 : 1,774,657,076.16 = 699,261,631.36 : x
  2. Step 2: Convert to fraction form
    1,285,976,694.40/1,774,657,076.16 = 699,261,631.36/x
  3. Step 3: Cross multiply
    1,285,976,694.40x = 1,774,657,076.16 × 699,261,631.36
  4. Step 4: Simplify right side
    1,285,976,694.40x = 1,240,949,602,180,209,408
  5. Step 5: Solve for x
    x = 1,240,949,602,180,209,408/1,285,976,694.40
  6. Step 6: Final answer
    x = 964,986,074.46

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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.