Home / 256,782,717.38-354,360,836.84-139,308,047.62

Finding the Fourth Proportional to 256,782,717.38, 354,360,836.84 and 139,308,047.62

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Solution

The fourth proportional to 256,782,717.38, 354,360,836.84 and 139,308,047.62 is: 192,245,478.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,782,717.38 : 354,360,836.84 = 139,308,047.62 : x
  2. Step 2: Convert to fraction form
    256,782,717.38/354,360,836.84 = 139,308,047.62/x
  3. Step 3: Cross multiply
    256,782,717.38x = 354,360,836.84 × 139,308,047.62
  4. Step 4: Simplify right side
    256,782,717.38x = 49,365,316,333,169,768
  5. Step 5: Solve for x
    x = 49,365,316,333,169,768/256,782,717.38
  6. Step 6: Final answer
    x = 192,245,478.34

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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.