Home / 256,910,060.57-354,536,233.70-139,435,392.33

Finding the Fourth Proportional to 256,910,060.57, 354,536,233.70 and 139,435,392.33

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Solution

The fourth proportional to 256,910,060.57, 354,536,233.70 and 139,435,392.33 is: 192,421,031.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,910,060.57 : 354,536,233.70 = 139,435,392.33 : x
  2. Step 2: Convert to fraction form
    256,910,060.57/354,536,233.70 = 139,435,392.33/x
  3. Step 3: Cross multiply
    256,910,060.57x = 354,536,233.70 × 139,435,392.33
  4. Step 4: Simplify right side
    256,910,060.57x = 49,434,898,840,462,896
  5. Step 5: Solve for x
    x = 49,434,898,840,462,896/256,910,060.57
  6. Step 6: Final answer
    x = 192,421,031.44

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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.