Home / 290,030,247.44-435,041,108.53-71,680,608.28

Finding the Fourth Proportional to 290,030,247.44, 435,041,108.53 and 71,680,608.28

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Solution

The fourth proportional to 290,030,247.44, 435,041,108.53 and 71,680,608.28 is: 107,519,858.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,030,247.44 : 435,041,108.53 = 71,680,608.28 : x
  2. Step 2: Convert to fraction form
    290,030,247.44/435,041,108.53 = 71,680,608.28/x
  3. Step 3: Cross multiply
    290,030,247.44x = 435,041,108.53 × 71,680,608.28
  4. Step 4: Simplify right side
    290,030,247.44x = 31,184,011,287,004,056
  5. Step 5: Solve for x
    x = 31,184,011,287,004,056/290,030,247.44
  6. Step 6: Final answer
    x = 107,519,858.92

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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.