Home / 145,542,705.10-218,314,057.65-133,638,426.70

Finding the Fourth Proportional to 145,542,705.10, 218,314,057.65 and 133,638,426.70

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Solution

The fourth proportional to 145,542,705.10, 218,314,057.65 and 133,638,426.70 is: 200,457,640.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,542,705.10 : 218,314,057.65 = 133,638,426.70 : x
  2. Step 2: Convert to fraction form
    145,542,705.10/218,314,057.65 = 133,638,426.70/x
  3. Step 3: Cross multiply
    145,542,705.10x = 218,314,057.65 × 133,638,426.70
  4. Step 4: Simplify right side
    145,542,705.10x = 29,175,147,190,839,100
  5. Step 5: Solve for x
    x = 29,175,147,190,839,100/145,542,705.10
  6. Step 6: Final answer
    x = 200,457,640.05

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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.