Home / 256,815,583.88-354,401,036.40-156,307,690.52

Finding the Fourth Proportional to 256,815,583.88, 354,401,036.40 and 156,307,690.52

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Solution

The fourth proportional to 256,815,583.88, 354,401,036.40 and 156,307,690.52 is: 215,701,892.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,815,583.88 : 354,401,036.40 = 156,307,690.52 : x
  2. Step 2: Convert to fraction form
    256,815,583.88/354,401,036.40 = 156,307,690.52/x
  3. Step 3: Cross multiply
    256,815,583.88x = 354,401,036.40 × 156,307,690.52
  4. Step 4: Simplify right side
    256,815,583.88x = 55,395,607,517,578,456
  5. Step 5: Solve for x
    x = 55,395,607,517,578,456/256,815,583.88
  6. Step 6: Final answer
    x = 215,701,892.70

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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.