Home / 1,347,419,270.40-2,020,939,948.80-427,388,611.20

Finding the Fourth Proportional to 1,347,419,270.40, 2,020,939,948.80 and 427,388,611.20

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Solution

The fourth proportional to 1,347,419,270.40, 2,020,939,948.80 and 427,388,611.20 is: 641,022,981.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,347,419,270.40 : 2,020,939,948.80 = 427,388,611.20 : x
  2. Step 2: Convert to fraction form
    1,347,419,270.40/2,020,939,948.80 = 427,388,611.20/x
  3. Step 3: Cross multiply
    1,347,419,270.40x = 2,020,939,948.80 × 427,388,611.20
  4. Step 4: Simplify right side
    1,347,419,270.40x = 863,726,718,036,231,040
  5. Step 5: Solve for x
    x = 863,726,718,036,231,040/1,347,419,270.40
  6. Step 6: Final answer
    x = 641,022,981.50

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1.5x scale

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.