Home / 290,030,247.90-435,041,109.24-71,680,608.75

Finding the Fourth Proportional to 290,030,247.90, 435,041,109.24 and 71,680,608.75

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Solution

The fourth proportional to 290,030,247.90, 435,041,109.24 and 71,680,608.75 is: 107,519,859.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,030,247.90 : 435,041,109.24 = 71,680,608.75 : x
  2. Step 2: Convert to fraction form
    290,030,247.90/435,041,109.24 = 71,680,608.75/x
  3. Step 3: Cross multiply
    290,030,247.90x = 435,041,109.24 × 71,680,608.75
  4. Step 4: Simplify right side
    290,030,247.90x = 31,184,011,541,598,452
  5. Step 5: Solve for x
    x = 31,184,011,541,598,452/290,030,247.90
  6. Step 6: Final answer
    x = 107,519,859.63

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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.