Home / 291,373,719.40-436,934,607.90-145,751,012.20

Finding the Fourth Proportional to 291,373,719.40, 436,934,607.90 and 145,751,012.20

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Solution

The fourth proportional to 291,373,719.40, 436,934,607.90 and 145,751,012.20 is: 218,563,504.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,373,719.40 : 436,934,607.90 = 145,751,012.20 : x
  2. Step 2: Convert to fraction form
    291,373,719.40/436,934,607.90 = 145,751,012.20/x
  3. Step 3: Cross multiply
    291,373,719.40x = 436,934,607.90 × 145,751,012.20
  4. Step 4: Simplify right side
    291,373,719.40x = 63,683,661,366,635,104
  5. Step 5: Solve for x
    x = 63,683,661,366,635,104/291,373,719.40
  6. Step 6: Final answer
    x = 218,563,504.96

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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.