Home / 139,968,559.90-210,057,815.85-71,776,150.30

Finding the Fourth Proportional to 139,968,559.90, 210,057,815.85 and 71,776,150.30

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Solution

The fourth proportional to 139,968,559.90, 210,057,815.85 and 71,776,150.30 is: 107,718,057.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,559.90 : 210,057,815.85 = 71,776,150.30 : x
  2. Step 2: Convert to fraction form
    139,968,559.90/210,057,815.85 = 71,776,150.30/x
  3. Step 3: Cross multiply
    139,968,559.90x = 210,057,815.85 × 71,776,150.30
  4. Step 4: Simplify right side
    139,968,559.90x = 15,077,141,362,139,322
  5. Step 5: Solve for x
    x = 15,077,141,362,139,322/139,968,559.90
  6. Step 6: Final answer
    x = 107,718,057.35

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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.