Home / 1,243,986,478.40-1,865,986,692.75-414,937,845.63

Finding the Fourth Proportional to 1,243,986,478.40, 1,865,986,692.75 and 414,937,845.63

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Solution

The fourth proportional to 1,243,986,478.40, 1,865,986,692.75 and 414,937,845.63 is: 622,409,095.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,986,478.40 : 1,865,986,692.75 = 414,937,845.63 : x
  2. Step 2: Convert to fraction form
    1,243,986,478.40/1,865,986,692.75 = 414,937,845.63/x
  3. Step 3: Cross multiply
    1,243,986,478.40x = 1,865,986,692.75 × 414,937,845.63
  4. Step 4: Simplify right side
    1,243,986,478.40x = 774,268,498,263,933,696
  5. Step 5: Solve for x
    x = 774,268,498,263,933,696/1,243,986,478.40
  6. Step 6: Final answer
    x = 622,409,095.04

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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.