Home / 777,412,727.40-1,067,118,938.84-687,333,477.90

Finding the Fourth Proportional to 777,412,727.40, 1,067,118,938.84 and 687,333,477.90

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Solution

The fourth proportional to 777,412,727.40, 1,067,118,938.84 and 687,333,477.90 is: 943,471,267.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,412,727.40 : 1,067,118,938.84 = 687,333,477.90 : x
  2. Step 2: Convert to fraction form
    777,412,727.40/1,067,118,938.84 = 687,333,477.90/x
  3. Step 3: Cross multiply
    777,412,727.40x = 1,067,118,938.84 × 687,333,477.90
  4. Step 4: Simplify right side
    777,412,727.40x = 733,466,571,562,417,920
  5. Step 5: Solve for x
    x = 733,466,571,562,417,920/777,412,727.40
  6. Step 6: Final answer
    x = 943,471,267.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.