Home / 145,542,727.85-218,314,091.78-133,638,449.45

Finding the Fourth Proportional to 145,542,727.85, 218,314,091.78 and 133,638,449.45

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Solution

The fourth proportional to 145,542,727.85, 218,314,091.78 and 133,638,449.45 is: 200,457,674.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,542,727.85 : 218,314,091.78 = 133,638,449.45 : x
  2. Step 2: Convert to fraction form
    145,542,727.85/218,314,091.78 = 133,638,449.45/x
  3. Step 3: Cross multiply
    145,542,727.85x = 218,314,091.78 × 133,638,449.45
  4. Step 4: Simplify right side
    145,542,727.85x = 29,175,156,717,896,000
  5. Step 5: Solve for x
    x = 29,175,156,717,896,000/145,542,727.85
  6. Step 6: Final answer
    x = 200,457,674.18

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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.