Home / 289,002,954.94-398,824,285.88-156,843,917.28

Finding the Fourth Proportional to 289,002,954.94, 398,824,285.88 and 156,843,917.28

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Solution

The fourth proportional to 289,002,954.94, 398,824,285.88 and 156,843,917.28 is: 216,444,718.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,002,954.94 : 398,824,285.88 = 156,843,917.28 : x
  2. Step 2: Convert to fraction form
    289,002,954.94/398,824,285.88 = 156,843,917.28/x
  3. Step 3: Cross multiply
    289,002,954.94x = 398,824,285.88 × 156,843,917.28
  4. Step 4: Simplify right side
    289,002,954.94x = 62,553,163,304,209,904
  5. Step 5: Solve for x
    x = 62,553,163,304,209,904/289,002,954.94
  6. Step 6: Final answer
    x = 216,444,718.77

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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.