Home / 256,905,087.36-354,531,573.72-139,431,461.28

Finding the Fourth Proportional to 256,905,087.36, 354,531,573.72 and 139,431,461.28

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Solution

The fourth proportional to 256,905,087.36, 354,531,573.72 and 139,431,461.28 is: 192,416,802.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,905,087.36 : 354,531,573.72 = 139,431,461.28 : x
  2. Step 2: Convert to fraction form
    256,905,087.36/354,531,573.72 = 139,431,461.28/x
  3. Step 3: Cross multiply
    256,905,087.36x = 354,531,573.72 × 139,431,461.28
  4. Step 4: Simplify right side
    256,905,087.36x = 49,432,855,393,677,648
  5. Step 5: Solve for x
    x = 49,432,855,393,677,648/256,905,087.36
  6. Step 6: Final answer
    x = 192,416,802.26

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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.