Home / 212,580,010.40-318,870,015.60-194,440,157.60

Finding the Fourth Proportional to 212,580,010.40, 318,870,015.60 and 194,440,157.60

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Solution

The fourth proportional to 212,580,010.40, 318,870,015.60 and 194,440,157.60 is: 291,660,236.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,580,010.40 : 318,870,015.60 = 194,440,157.60 : x
  2. Step 2: Convert to fraction form
    212,580,010.40/318,870,015.60 = 194,440,157.60/x
  3. Step 3: Cross multiply
    212,580,010.40x = 318,870,015.60 × 194,440,157.60
  4. Step 4: Simplify right side
    212,580,010.40x = 62,001,136,087,178,464
  5. Step 5: Solve for x
    x = 62,001,136,087,178,464/212,580,010.40
  6. Step 6: Final answer
    x = 291,660,236.40

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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.