Home / 371,702,982.64-512,929,057.08-206,687,009.20

Finding the Fourth Proportional to 371,702,982.64, 512,929,057.08 and 206,687,009.20

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Solution

The fourth proportional to 371,702,982.64, 512,929,057.08 and 206,687,009.20 is: 285,216,362.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,702,982.64 : 512,929,057.08 = 206,687,009.20 : x
  2. Step 2: Convert to fraction form
    371,702,982.64/512,929,057.08 = 206,687,009.20/x
  3. Step 3: Cross multiply
    371,702,982.64x = 512,929,057.08 × 206,687,009.20
  4. Step 4: Simplify right side
    371,702,982.64x = 106,015,772,739,641,280
  5. Step 5: Solve for x
    x = 106,015,772,739,641,280/371,702,982.64
  6. Step 6: Final answer
    x = 285,216,362.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.