Home / 1,212,880,887.66-1,673,775,627.60-655,963,934.64

Finding the Fourth Proportional to 1,212,880,887.66, 1,673,775,627.60 and 655,963,934.64

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Solution

The fourth proportional to 1,212,880,887.66, 1,673,775,627.60 and 655,963,934.64 is: 905,230,231.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,880,887.66 : 1,673,775,627.60 = 655,963,934.64 : x
  2. Step 2: Convert to fraction form
    1,212,880,887.66/1,673,775,627.60 = 655,963,934.64/x
  3. Step 3: Cross multiply
    1,212,880,887.66x = 1,673,775,627.60 × 655,963,934.64
  4. Step 4: Simplify right side
    1,212,880,887.66x = 1,097,936,446,385,031,296
  5. Step 5: Solve for x
    x = 1,097,936,446,385,031,296/1,212,880,887.66
  6. Step 6: Final answer
    x = 905,230,231.23

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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.