Home / 1,329,702,076.40-1,994,553,114.60-640,954,540.40

Finding the Fourth Proportional to 1,329,702,076.40, 1,994,553,114.60 and 640,954,540.40

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Solution

The fourth proportional to 1,329,702,076.40, 1,994,553,114.60 and 640,954,540.40 is: 961,431,810.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,702,076.40 : 1,994,553,114.60 = 640,954,540.40 : x
  2. Step 2: Convert to fraction form
    1,329,702,076.40/1,994,553,114.60 = 640,954,540.40/x
  3. Step 3: Cross multiply
    1,329,702,076.40x = 1,994,553,114.60 × 640,954,540.40
  4. Step 4: Simplify right side
    1,329,702,076.40x = 1,278,417,874,871,831,296
  5. Step 5: Solve for x
    x = 1,278,417,874,871,831,296/1,329,702,076.40
  6. Step 6: Final answer
    x = 961,431,810.60

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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.