Home / 1,278,300,666.43-1,765,273,250.38-1,208,659,641.34

Finding the Fourth Proportional to 1,278,300,666.43, 1,765,273,250.38 and 1,208,659,641.34

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Solution

The fourth proportional to 1,278,300,666.43, 1,765,273,250.38 and 1,208,659,641.34 is: 1,669,102,261.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,300,666.43 : 1,765,273,250.38 = 1,208,659,641.34 : x
  2. Step 2: Convert to fraction form
    1,278,300,666.43/1,765,273,250.38 = 1,208,659,641.34/x
  3. Step 3: Cross multiply
    1,278,300,666.43x = 1,765,273,250.38 × 1,208,659,641.34
  4. Step 4: Simplify right side
    1,278,300,666.43x = 2,133,614,533,668,424,192
  5. Step 5: Solve for x
    x = 2,133,614,533,668,424,192/1,278,300,666.43
  6. Step 6: Final answer
    x = 1,669,102,261.85

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Double scale
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1.5x scale

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.