Home / 82,271,421.80-123,371,255.96-31,117,568.34

Finding the Fourth Proportional to 82,271,421.80, 123,371,255.96 and 31,117,568.34

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Solution

The fourth proportional to 82,271,421.80, 123,371,255.96 and 31,117,568.34 is: 46,662,782.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,271,421.80 : 123,371,255.96 = 31,117,568.34 : x
  2. Step 2: Convert to fraction form
    82,271,421.80/123,371,255.96 = 31,117,568.34/x
  3. Step 3: Cross multiply
    82,271,421.80x = 123,371,255.96 × 31,117,568.34
  4. Step 4: Simplify right side
    82,271,421.80x = 3,839,013,488,950,677.50
  5. Step 5: Solve for x
    x = 3,839,013,488,950,677.50/82,271,421.80
  6. Step 6: Final answer
    x = 46,662,782.84

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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.