Home / 443,611,018.72-612,142,122.75-245,368,247.20

Finding the Fourth Proportional to 443,611,018.72, 612,142,122.75 and 245,368,247.20

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Solution

The fourth proportional to 443,611,018.72, 612,142,122.75 and 245,368,247.20 is: 338,585,457.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,611,018.72 : 612,142,122.75 = 245,368,247.20 : x
  2. Step 2: Convert to fraction form
    443,611,018.72/612,142,122.75 = 245,368,247.20/x
  3. Step 3: Cross multiply
    443,611,018.72x = 612,142,122.75 × 245,368,247.20
  4. Step 4: Simplify right side
    443,611,018.72x = 150,200,239,696,454,752
  5. Step 5: Solve for x
    x = 150,200,239,696,454,752/443,611,018.72
  6. Step 6: Final answer
    x = 338,585,457.43

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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.