Home / 1,405,675,569.84-1,939,828,939.20-770,594,933.76

Finding the Fourth Proportional to 1,405,675,569.84, 1,939,828,939.20 and 770,594,933.76

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Solution

The fourth proportional to 1,405,675,569.84, 1,939,828,939.20 and 770,594,933.76 is: 1,063,419,173.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,675,569.84 : 1,939,828,939.20 = 770,594,933.76 : x
  2. Step 2: Convert to fraction form
    1,405,675,569.84/1,939,828,939.20 = 770,594,933.76/x
  3. Step 3: Cross multiply
    1,405,675,569.84x = 1,939,828,939.20 × 770,594,933.76
  4. Step 4: Simplify right side
    1,405,675,569.84x = 1,494,822,352,908,555,008
  5. Step 5: Solve for x
    x = 1,494,822,352,908,555,008/1,405,675,569.84
  6. Step 6: Final answer
    x = 1,063,419,173.66

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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.