Home / 109,362,357.88-150,848,942.21-70,142,012.08

Finding the Fourth Proportional to 109,362,357.88, 150,848,942.21 and 70,142,012.08

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Solution

The fourth proportional to 109,362,357.88, 150,848,942.21 and 70,142,012.08 is: 96,750,367.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,362,357.88 : 150,848,942.21 = 70,142,012.08 : x
  2. Step 2: Convert to fraction form
    109,362,357.88/150,848,942.21 = 70,142,012.08/x
  3. Step 3: Cross multiply
    109,362,357.88x = 150,848,942.21 × 70,142,012.08
  4. Step 4: Simplify right side
    109,362,357.88x = 10,580,848,326,749,042
  5. Step 5: Solve for x
    x = 10,580,848,326,749,042/109,362,357.88
  6. Step 6: Final answer
    x = 96,750,367.60

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1.5x scale

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.