Home / 1,116,198,580.50-1,540,500,718.05-640,075,274.10

Finding the Fourth Proportional to 1,116,198,580.50, 1,540,500,718.05 and 640,075,274.10

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Solution

The fourth proportional to 1,116,198,580.50, 1,540,500,718.05 and 640,075,274.10 is: 883,387,989.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116,198,580.50 : 1,540,500,718.05 = 640,075,274.10 : x
  2. Step 2: Convert to fraction form
    1,116,198,580.50/1,540,500,718.05 = 640,075,274.10/x
  3. Step 3: Cross multiply
    1,116,198,580.50x = 1,540,500,718.05 × 640,075,274.10
  4. Step 4: Simplify right side
    1,116,198,580.50x = 986,036,419,357,100,544
  5. Step 5: Solve for x
    x = 986,036,419,357,100,544/1,116,198,580.50
  6. Step 6: Final answer
    x = 883,387,989.00

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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.