Home / 28,371,370.80-42,557,056.20-19,712,017.20

Finding the Fourth Proportional to 28,371,370.80, 42,557,056.20 and 19,712,017.20

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Solution

The fourth proportional to 28,371,370.80, 42,557,056.20 and 19,712,017.20 is: 29,568,025.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,371,370.80 : 42,557,056.20 = 19,712,017.20 : x
  2. Step 2: Convert to fraction form
    28,371,370.80/42,557,056.20 = 19,712,017.20/x
  3. Step 3: Cross multiply
    28,371,370.80x = 42,557,056.20 × 19,712,017.20
  4. Step 4: Simplify right side
    28,371,370.80x = 838,885,423,795,766.62
  5. Step 5: Solve for x
    x = 838,885,423,795,766.62/28,371,370.80
  6. Step 6: Final answer
    x = 29,568,025.80

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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.