Home / 398,208,092.40-597,312,138.60-125,606,415.60

Finding the Fourth Proportional to 398,208,092.40, 597,312,138.60 and 125,606,415.60

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Solution

The fourth proportional to 398,208,092.40, 597,312,138.60 and 125,606,415.60 is: 188,409,623.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,208,092.40 : 597,312,138.60 = 125,606,415.60 : x
  2. Step 2: Convert to fraction form
    398,208,092.40/597,312,138.60 = 125,606,415.60/x
  3. Step 3: Cross multiply
    398,208,092.40x = 597,312,138.60 × 125,606,415.60
  4. Step 4: Simplify right side
    398,208,092.40x = 75,026,236,723,916,400
  5. Step 5: Solve for x
    x = 75,026,236,723,916,400/398,208,092.40
  6. Step 6: Final answer
    x = 188,409,623.40

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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.