Home / 1,243,986,477.89-1,865,986,692-414,937,845.13

Finding the Fourth Proportional to 1,243,986,477.89, 1,865,986,692 and 414,937,845.13

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Solution

The fourth proportional to 1,243,986,477.89, 1,865,986,692 and 414,937,845.13 is: 622,409,094.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,986,477.89 : 1,865,986,692 = 414,937,845.13 : x
  2. Step 2: Convert to fraction form
    1,243,986,477.89/1,865,986,692 = 414,937,845.13/x
  3. Step 3: Cross multiply
    1,243,986,477.89x = 1,865,986,692 × 414,937,845.13
  4. Step 4: Simplify right side
    1,243,986,477.89x = 774,268,497,019,736,960
  5. Step 5: Solve for x
    x = 774,268,497,019,736,960/1,243,986,477.89
  6. Step 6: Final answer
    x = 622,409,094.30

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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.