Home / 208,415,772.28-312,229,057.78-139,119,627.32

Finding the Fourth Proportional to 208,415,772.28, 312,229,057.78 and 139,119,627.32

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Solution

The fourth proportional to 208,415,772.28, 312,229,057.78 and 139,119,627.32 is: 208,416,041.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,415,772.28 : 312,229,057.78 = 139,119,627.32 : x
  2. Step 2: Convert to fraction form
    208,415,772.28/312,229,057.78 = 139,119,627.32/x
  3. Step 3: Cross multiply
    208,415,772.28x = 312,229,057.78 × 139,119,627.32
  4. Step 4: Simplify right side
    208,415,772.28x = 43,437,190,156,828,344
  5. Step 5: Solve for x
    x = 43,437,190,156,828,344/208,415,772.28
  6. Step 6: Final answer
    x = 208,416,041.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.