Home / 354,585,289.54-489,458,274.89-213,463,069.34

Finding the Fourth Proportional to 354,585,289.54, 489,458,274.89 and 213,463,069.34

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Solution

The fourth proportional to 354,585,289.54, 489,458,274.89 and 213,463,069.34 is: 294,657,643.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,585,289.54 : 489,458,274.89 = 213,463,069.34 : x
  2. Step 2: Convert to fraction form
    354,585,289.54/489,458,274.89 = 213,463,069.34/x
  3. Step 3: Cross multiply
    354,585,289.54x = 489,458,274.89 × 213,463,069.34
  4. Step 4: Simplify right side
    354,585,289.54x = 104,481,265,671,880,848
  5. Step 5: Solve for x
    x = 104,481,265,671,880,848/354,585,289.54
  6. Step 6: Final answer
    x = 294,657,643.04

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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.