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Finding the Third Proportional to 395,345,929.75 and 578,465,889.75

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Solution

The third proportional to 395,345,929.75 and 578,465,889.75 is: 846,405,035.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,345,929.75 : 578,465,889.75 = 578,465,889.75 : x
  2. Step 2: Convert to fraction form
    395,345,929.75/578,465,889.75 = 578,465,889.75/x
  3. Step 3: Cross multiply
    395,345,929.75x = 578,465,889.75 × 578,465,889.75
  4. Step 4: Simplify right side
    395,345,929.75x = 334,622,785,604,259,136
  5. Step 5: Solve for x
    x = 334,622,785,604,259,136/395,345,929.75
  6. Step 6: Final answer
    x = 846,405,035.25

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.