Home / 256,788,011.49-354,368,135.43-139,313,338.08

Finding the Fourth Proportional to 256,788,011.49, 354,368,135.43 and 139,313,338.08

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Solution

The fourth proportional to 256,788,011.49, 354,368,135.43 and 139,313,338.08 is: 192,252,775.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,788,011.49 : 354,368,135.43 = 139,313,338.08 : x
  2. Step 2: Convert to fraction form
    256,788,011.49/354,368,135.43 = 139,313,338.08/x
  3. Step 3: Cross multiply
    256,788,011.49x = 354,368,135.43 × 139,313,338.08
  4. Step 4: Simplify right side
    256,788,011.49x = 49,368,207,855,938,824
  5. Step 5: Solve for x
    x = 49,368,207,855,938,824/256,788,011.49
  6. Step 6: Final answer
    x = 192,252,775.23

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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.