Home / 139,620,071-209,452,799.46-41,261,758.04

Finding the Fourth Proportional to 139,620,071, 209,452,799.46 and 41,261,758.04

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Solution

The fourth proportional to 139,620,071, 209,452,799.46 and 41,261,758.04 is: 61,899,343.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,620,071 : 209,452,799.46 = 41,261,758.04 : x
  2. Step 2: Convert to fraction form
    139,620,071/209,452,799.46 = 41,261,758.04/x
  3. Step 3: Cross multiply
    139,620,071x = 209,452,799.46 × 41,261,758.04
  4. Step 4: Simplify right side
    139,620,071x = 8,642,390,732,119,163
  5. Step 5: Solve for x
    x = 8,642,390,732,119,163/139,620,071
  6. Step 6: Final answer
    x = 61,899,343.48

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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.