Home / 28,247,999.40-42,371,999.10-21,445,554.60

Finding the Fourth Proportional to 28,247,999.40, 42,371,999.10 and 21,445,554.60

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Solution

The fourth proportional to 28,247,999.40, 42,371,999.10 and 21,445,554.60 is: 32,168,331.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,247,999.40 : 42,371,999.10 = 21,445,554.60 : x
  2. Step 2: Convert to fraction form
    28,247,999.40/42,371,999.10 = 21,445,554.60/x
  3. Step 3: Cross multiply
    28,247,999.40x = 42,371,999.10 × 21,445,554.60
  4. Step 4: Simplify right side
    28,247,999.40x = 908,691,020,210,201
  5. Step 5: Solve for x
    x = 908,691,020,210,201/28,247,999.40
  6. Step 6: Final answer
    x = 32,168,331.90

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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.