Home / 142,226,869.21-213,340,386.23-39,990,906.83

Finding the Fourth Proportional to 142,226,869.21, 213,340,386.23 and 39,990,906.83

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Solution

The fourth proportional to 142,226,869.21, 213,340,386.23 and 39,990,906.83 is: 59,986,383.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,226,869.21 : 213,340,386.23 = 39,990,906.83 : x
  2. Step 2: Convert to fraction form
    142,226,869.21/213,340,386.23 = 39,990,906.83/x
  3. Step 3: Cross multiply
    142,226,869.21x = 213,340,386.23 × 39,990,906.83
  4. Step 4: Simplify right side
    142,226,869.21x = 8,531,675,509,283,108
  5. Step 5: Solve for x
    x = 8,531,675,509,283,108/142,226,869.21
  6. Step 6: Final answer
    x = 59,986,383.42

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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.