Home / 371,702,981.64-512,929,055.70-206,687,008.20

Finding the Fourth Proportional to 371,702,981.64, 512,929,055.70 and 206,687,008.20

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Solution

The fourth proportional to 371,702,981.64, 512,929,055.70 and 206,687,008.20 is: 285,216,361.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,702,981.64 : 512,929,055.70 = 206,687,008.20 : x
  2. Step 2: Convert to fraction form
    371,702,981.64/512,929,055.70 = 206,687,008.20/x
  3. Step 3: Cross multiply
    371,702,981.64x = 512,929,055.70 × 206,687,008.20
  4. Step 4: Simplify right side
    371,702,981.64x = 106,015,771,941,484,144
  5. Step 5: Solve for x
    x = 106,015,771,941,484,144/371,702,981.64
  6. Step 6: Final answer
    x = 285,216,361.39

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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.