Home / 256,961,136.74-354,606,818.63-139,486,546.76

Finding the Fourth Proportional to 256,961,136.74, 354,606,818.63 and 139,486,546.76

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Solution

The fourth proportional to 256,961,136.74, 354,606,818.63 and 139,486,546.76 is: 192,491,678.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,961,136.74 : 354,606,818.63 = 139,486,546.76 : x
  2. Step 2: Convert to fraction form
    256,961,136.74/354,606,818.63 = 139,486,546.76/x
  3. Step 3: Cross multiply
    256,961,136.74x = 354,606,818.63 × 139,486,546.76
  4. Step 4: Simplify right side
    256,961,136.74x = 49,462,880,585,777,864
  5. Step 5: Solve for x
    x = 49,462,880,585,777,864/256,961,136.74
  6. Step 6: Final answer
    x = 192,491,678.76

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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.