Home / 771,976,661.76-1,065,336,022.04-419,552,677.98

Finding the Fourth Proportional to 771,976,661.76, 1,065,336,022.04 and 419,552,677.98

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Solution

The fourth proportional to 771,976,661.76, 1,065,336,022.04 and 419,552,677.98 is: 578,987,167.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,976,661.76 : 1,065,336,022.04 = 419,552,677.98 : x
  2. Step 2: Convert to fraction form
    771,976,661.76/1,065,336,022.04 = 419,552,677.98/x
  3. Step 3: Cross multiply
    771,976,661.76x = 1,065,336,022.04 × 419,552,677.98
  4. Step 4: Simplify right side
    771,976,661.76x = 446,964,580,993,344,576
  5. Step 5: Solve for x
    x = 446,964,580,993,344,576/771,976,661.76
  6. Step 6: Final answer
    x = 578,987,167.79

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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.