Home / 1,378,850,353.88-1,900,590,661.64-932,650,995.83

Finding the Fourth Proportional to 1,378,850,353.88, 1,900,590,661.64 and 932,650,995.83

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Solution

The fourth proportional to 1,378,850,353.88, 1,900,590,661.64 and 932,650,995.83 is: 1,285,554,859.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,850,353.88 : 1,900,590,661.64 = 932,650,995.83 : x
  2. Step 2: Convert to fraction form
    1,378,850,353.88/1,900,590,661.64 = 932,650,995.83/x
  3. Step 3: Cross multiply
    1,378,850,353.88x = 1,900,590,661.64 × 932,650,995.83
  4. Step 4: Simplify right side
    1,378,850,353.88x = 1,772,587,773,236,573,184
  5. Step 5: Solve for x
    x = 1,772,587,773,236,573,184/1,378,850,353.88
  6. Step 6: Final answer
    x = 1,285,554,859.71

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Double scale
Find fourth proportional to 1,378,850,354.88, 1,900,590,663.02 and 932,650,996.83
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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.