Home / 139,968,685.90-210,058,004.85-71,776,276.30

Finding the Fourth Proportional to 139,968,685.90, 210,058,004.85 and 71,776,276.30

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Solution

The fourth proportional to 139,968,685.90, 210,058,004.85 and 71,776,276.30 is: 107,718,246.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,685.90 : 210,058,004.85 = 71,776,276.30 : x
  2. Step 2: Convert to fraction form
    139,968,685.90/210,058,004.85 = 71,776,276.30/x
  3. Step 3: Cross multiply
    139,968,685.90x = 210,058,004.85 × 71,776,276.30
  4. Step 4: Simplify right side
    139,968,685.90x = 15,077,181,395,140,340
  5. Step 5: Solve for x
    x = 15,077,181,395,140,340/139,968,685.90
  6. Step 6: Final answer
    x = 107,718,246.39

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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.