Home / 28,371,367.80-42,557,051.70-19,712,014.20

Finding the Fourth Proportional to 28,371,367.80, 42,557,051.70 and 19,712,014.20

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Solution

The fourth proportional to 28,371,367.80, 42,557,051.70 and 19,712,014.20 is: 29,568,021.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,371,367.80 : 42,557,051.70 = 19,712,014.20 : x
  2. Step 2: Convert to fraction form
    28,371,367.80/42,557,051.70 = 19,712,014.20/x
  3. Step 3: Cross multiply
    28,371,367.80x = 42,557,051.70 × 19,712,014.20
  4. Step 4: Simplify right side
    28,371,367.80x = 838,885,207,420,534.12
  5. Step 5: Solve for x
    x = 838,885,207,420,534.12/28,371,367.80
  6. Step 6: Final answer
    x = 29,568,021.30

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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.