Home / 1,212,525,431.28-1,673,216,393.04-683,857,819.44

Finding the Fourth Proportional to 1,212,525,431.28, 1,673,216,393.04 and 683,857,819.44

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Solution

The fourth proportional to 1,212,525,431.28, 1,673,216,393.04 and 683,857,819.44 is: 943,685,043.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,525,431.28 : 1,673,216,393.04 = 683,857,819.44 : x
  2. Step 2: Convert to fraction form
    1,212,525,431.28/1,673,216,393.04 = 683,857,819.44/x
  3. Step 3: Cross multiply
    1,212,525,431.28x = 1,673,216,393.04 × 683,857,819.44
  4. Step 4: Simplify right side
    1,212,525,431.28x = 1,144,242,113,995,596,416
  5. Step 5: Solve for x
    x = 1,144,242,113,995,596,416/1,212,525,431.28
  6. Step 6: Final answer
    x = 943,685,043.20

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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.