Home / 1,117,078,172.75-1,541,567,805.33-647,451,900.79

Finding the Fourth Proportional to 1,117,078,172.75, 1,541,567,805.33 and 647,451,900.79

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Solution

The fourth proportional to 1,117,078,172.75, 1,541,567,805.33 and 647,451,900.79 is: 893,483,580.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117,078,172.75 : 1,541,567,805.33 = 647,451,900.79 : x
  2. Step 2: Convert to fraction form
    1,117,078,172.75/1,541,567,805.33 = 647,451,900.79/x
  3. Step 3: Cross multiply
    1,117,078,172.75x = 1,541,567,805.33 × 647,451,900.79
  4. Step 4: Simplify right side
    1,117,078,172.75x = 998,091,005,759,439,616
  5. Step 5: Solve for x
    x = 998,091,005,759,439,616/1,117,078,172.75
  6. Step 6: Final answer
    x = 893,483,580.74

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Double scale
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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.