Home / 1,223,912,986.64-1,836,411,622.72-641,508,821.36

Finding the Fourth Proportional to 1,223,912,986.64, 1,836,411,622.72 and 641,508,821.36

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Solution

The fourth proportional to 1,223,912,986.64, 1,836,411,622.72 and 641,508,821.36 is: 962,547,393.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,912,986.64 : 1,836,411,622.72 = 641,508,821.36 : x
  2. Step 2: Convert to fraction form
    1,223,912,986.64/1,836,411,622.72 = 641,508,821.36/x
  3. Step 3: Cross multiply
    1,223,912,986.64x = 1,836,411,622.72 × 641,508,821.36
  4. Step 4: Simplify right side
    1,223,912,986.64x = 1,178,074,255,622,912,256
  5. Step 5: Solve for x
    x = 1,178,074,255,622,912,256/1,223,912,986.64
  6. Step 6: Final answer
    x = 962,547,393.88

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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.