Home / 193,574,999.70-290,362,499.55-72,390,705.30

Finding the Fourth Proportional to 193,574,999.70, 290,362,499.55 and 72,390,705.30

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Solution

The fourth proportional to 193,574,999.70, 290,362,499.55 and 72,390,705.30 is: 108,586,057.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,574,999.70 : 290,362,499.55 = 72,390,705.30 : x
  2. Step 2: Convert to fraction form
    193,574,999.70/290,362,499.55 = 72,390,705.30/x
  3. Step 3: Cross multiply
    193,574,999.70x = 290,362,499.55 × 72,390,705.30
  4. Step 4: Simplify right side
    193,574,999.70x = 21,019,546,135,095,432
  5. Step 5: Solve for x
    x = 21,019,546,135,095,432/193,574,999.70
  6. Step 6: Final answer
    x = 108,586,057.95

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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.