Home / 1,278,304,264.58-1,765,278,190.67-1,208,663,218.98

Finding the Fourth Proportional to 1,278,304,264.58, 1,765,278,190.67 and 1,208,663,218.98

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Solution

The fourth proportional to 1,278,304,264.58, 1,765,278,190.67 and 1,208,663,218.98 is: 1,669,107,175.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,304,264.58 : 1,765,278,190.67 = 1,208,663,218.98 : x
  2. Step 2: Convert to fraction form
    1,278,304,264.58/1,765,278,190.67 = 1,208,663,218.98/x
  3. Step 3: Cross multiply
    1,278,304,264.58x = 1,765,278,190.67 × 1,208,663,218.98
  4. Step 4: Simplify right side
    1,278,304,264.58x = 2,133,626,820,324,349,184
  5. Step 5: Solve for x
    x = 2,133,626,820,324,349,184/1,278,304,264.58
  6. Step 6: Final answer
    x = 1,669,107,175.38

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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.