Home / 28,371,181.80-42,556,772.70-19,711,828.20

Finding the Fourth Proportional to 28,371,181.80, 42,556,772.70 and 19,711,828.20

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Solution

The fourth proportional to 28,371,181.80, 42,556,772.70 and 19,711,828.20 is: 29,567,742.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,371,181.80 : 42,556,772.70 = 19,711,828.20 : x
  2. Step 2: Convert to fraction form
    28,371,181.80/42,556,772.70 = 19,711,828.20/x
  3. Step 3: Cross multiply
    28,371,181.80x = 42,556,772.70 × 19,711,828.20
  4. Step 4: Simplify right side
    28,371,181.80x = 838,871,792,208,850.12
  5. Step 5: Solve for x
    x = 838,871,792,208,850.12/28,371,181.80
  6. Step 6: Final answer
    x = 29,567,742.30

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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.