Home / 1,635,993,871.80-2,453,990,807.70-1,270,509,430.20

Finding the Fourth Proportional to 1,635,993,871.80, 2,453,990,807.70 and 1,270,509,430.20

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Solution

The fourth proportional to 1,635,993,871.80, 2,453,990,807.70 and 1,270,509,430.20 is: 1,905,764,145.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,635,993,871.80 : 2,453,990,807.70 = 1,270,509,430.20 : x
  2. Step 2: Convert to fraction form
    1,635,993,871.80/2,453,990,807.70 = 1,270,509,430.20/x
  3. Step 3: Cross multiply
    1,635,993,871.80x = 2,453,990,807.70 × 1,270,509,430.20
  4. Step 4: Simplify right side
    1,635,993,871.80x = 3,117,818,462,806,964,736
  5. Step 5: Solve for x
    x = 3,117,818,462,806,964,736/1,635,993,871.80
  6. Step 6: Final answer
    x = 1,905,764,145.30

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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.