Home / 139,968,457.40-210,057,662.10-71,776,047.80

Finding the Fourth Proportional to 139,968,457.40, 210,057,662.10 and 71,776,047.80

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Solution

The fourth proportional to 139,968,457.40, 210,057,662.10 and 71,776,047.80 is: 107,717,903.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,457.40 : 210,057,662.10 = 71,776,047.80 : x
  2. Step 2: Convert to fraction form
    139,968,457.40/210,057,662.10 = 71,776,047.80/x
  3. Step 3: Cross multiply
    139,968,457.40x = 210,057,662.10 × 71,776,047.80
  4. Step 4: Simplify right side
    139,968,457.40x = 15,077,108,795,645,848
  5. Step 5: Solve for x
    x = 15,077,108,795,645,848/139,968,457.40
  6. Step 6: Final answer
    x = 107,717,903.56

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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.