Home / 1,212,858,844.12-1,673,746,322.82-655,941,891.76

Finding the Fourth Proportional to 1,212,858,844.12, 1,673,746,322.82 and 655,941,891.76

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Solution

The fourth proportional to 1,212,858,844.12, 1,673,746,322.82 and 655,941,891.76 is: 905,200,415.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,858,844.12 : 1,673,746,322.82 = 655,941,891.76 : x
  2. Step 2: Convert to fraction form
    1,212,858,844.12/1,673,746,322.82 = 655,941,891.76/x
  3. Step 3: Cross multiply
    1,212,858,844.12x = 1,673,746,322.82 × 655,941,891.76
  4. Step 4: Simplify right side
    1,212,858,844.12x = 1,097,880,329,316,894,336
  5. Step 5: Solve for x
    x = 1,097,880,329,316,894,336/1,212,858,844.12
  6. Step 6: Final answer
    x = 905,200,415.23

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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.