Home / 1,268,674,161.85-1,904,879,328.96-709,531,478.96

Finding the Fourth Proportional to 1,268,674,161.85, 1,904,879,328.96 and 709,531,478.96

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Solution

The fourth proportional to 1,268,674,161.85, 1,904,879,328.96 and 709,531,478.96 is: 1,065,341,983.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,674,161.85 : 1,904,879,328.96 = 709,531,478.96 : x
  2. Step 2: Convert to fraction form
    1,268,674,161.85/1,904,879,328.96 = 709,531,478.96/x
  3. Step 3: Cross multiply
    1,268,674,161.85x = 1,904,879,328.96 × 709,531,478.96
  4. Step 4: Simplify right side
    1,268,674,161.85x = 1,351,571,847,517,321,216
  5. Step 5: Solve for x
    x = 1,351,571,847,517,321,216/1,268,674,161.85
  6. Step 6: Final answer
    x = 1,065,341,983.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.