Home / 1,243,219,429.54-1,715,632,290.39-686,290,519.18

Finding the Fourth Proportional to 1,243,219,429.54, 1,715,632,290.39 and 686,290,519.18

Calculator

Solution

The fourth proportional to 1,243,219,429.54, 1,715,632,290.39 and 686,290,519.18 is: 947,075,107.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,219,429.54 : 1,715,632,290.39 = 686,290,519.18 : x
  2. Step 2: Convert to fraction form
    1,243,219,429.54/1,715,632,290.39 = 686,290,519.18/x
  3. Step 3: Cross multiply
    1,243,219,429.54x = 1,715,632,290.39 × 686,290,519.18
  4. Step 4: Simplify right side
    1,243,219,429.54x = 1,177,422,175,293,725,696
  5. Step 5: Solve for x
    x = 1,177,422,175,293,725,696/1,243,219,429.54
  6. Step 6: Final answer
    x = 947,075,107.83

Related Problems

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.