Home / 399,543,684.48-599,363,504.64-140,705,372.16

Finding the Fourth Proportional to 399,543,684.48, 599,363,504.64 and 140,705,372.16

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Solution

The fourth proportional to 399,543,684.48, 599,363,504.64 and 140,705,372.16 is: 211,074,954.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,543,684.48 : 599,363,504.64 = 140,705,372.16 : x
  2. Step 2: Convert to fraction form
    399,543,684.48/599,363,504.64 = 140,705,372.16/x
  3. Step 3: Cross multiply
    399,543,684.48x = 599,363,504.64 × 140,705,372.16
  4. Step 4: Simplify right side
    399,543,684.48x = 84,333,664,979,493,088
  5. Step 5: Solve for x
    x = 84,333,664,979,493,088/399,543,684.48
  6. Step 6: Final answer
    x = 211,074,954.39

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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.