Home / 139,968,359.90-210,057,515.85-71,775,950.30

Finding the Fourth Proportional to 139,968,359.90, 210,057,515.85 and 71,775,950.30

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Solution

The fourth proportional to 139,968,359.90, 210,057,515.85 and 71,775,950.30 is: 107,717,757.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,359.90 : 210,057,515.85 = 71,775,950.30 : x
  2. Step 2: Convert to fraction form
    139,968,359.90/210,057,515.85 = 71,775,950.30/x
  3. Step 3: Cross multiply
    139,968,359.90x = 210,057,515.85 × 71,775,950.30
  4. Step 4: Simplify right side
    139,968,359.90x = 15,077,077,817,791,062
  5. Step 5: Solve for x
    x = 15,077,077,817,791,062/139,968,359.90
  6. Step 6: Final answer
    x = 107,717,757.27

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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.