Home / 249,275,329-343,993,616.58-139,267,868.20

Finding the Fourth Proportional to 249,275,329, 343,993,616.58 and 139,267,868.20

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Solution

The fourth proportional to 249,275,329, 343,993,616.58 and 139,267,868.20 is: 192,186,117.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,275,329 : 343,993,616.58 = 139,267,868.20 : x
  2. Step 2: Convert to fraction form
    249,275,329/343,993,616.58 = 139,267,868.20/x
  3. Step 3: Cross multiply
    249,275,329x = 343,993,616.58 × 139,267,868.20
  4. Step 4: Simplify right side
    249,275,329x = 47,907,257,655,504,768
  5. Step 5: Solve for x
    x = 47,907,257,655,504,768/249,275,329
  6. Step 6: Final answer
    x = 192,186,117.45

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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.