Home / 572,543,999.10-858,815,998.65-141,722,495.10

Finding the Fourth Proportional to 572,543,999.10, 858,815,998.65 and 141,722,495.10

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Solution

The fourth proportional to 572,543,999.10, 858,815,998.65 and 141,722,495.10 is: 212,583,742.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,543,999.10 : 858,815,998.65 = 141,722,495.10 : x
  2. Step 2: Convert to fraction form
    572,543,999.10/858,815,998.65 = 141,722,495.10/x
  3. Step 3: Cross multiply
    572,543,999.10x = 858,815,998.65 × 141,722,495.10
  4. Step 4: Simplify right side
    572,543,999.10x = 121,713,546,160,476,224
  5. Step 5: Solve for x
    x = 121,713,546,160,476,224/572,543,999.10
  6. Step 6: Final answer
    x = 212,583,742.65

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Double scale
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Similar ratio
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1.5x scale

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.