Home / 2,187,215,911.71-3,018,365,579.39-1,183,633,227.63

Finding the Fourth Proportional to 2,187,215,911.71, 3,018,365,579.39 and 1,183,633,227.63

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Solution

The fourth proportional to 2,187,215,911.71, 3,018,365,579.39 and 1,183,633,227.63 is: 1,633,417,978.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,215,911.71 : 3,018,365,579.39 = 1,183,633,227.63 : x
  2. Step 2: Convert to fraction form
    2,187,215,911.71/3,018,365,579.39 = 1,183,633,227.63/x
  3. Step 3: Cross multiply
    2,187,215,911.71x = 3,018,365,579.39 × 1,183,633,227.63
  4. Step 4: Simplify right side
    2,187,215,911.71x = 3,572,637,792,894,763,008
  5. Step 5: Solve for x
    x = 3,572,637,792,894,763,008/2,187,215,911.71
  6. Step 6: Final answer
    x = 1,633,417,978.43

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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.