Home / 658,233,969.20-908,455,416-407,418,810.56

Finding the Fourth Proportional to 658,233,969.20, 908,455,416 and 407,418,810.56

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Solution

The fourth proportional to 658,233,969.20, 908,455,416 and 407,418,810.56 is: 562,295,235.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,233,969.20 : 908,455,416 = 407,418,810.56 : x
  2. Step 2: Convert to fraction form
    658,233,969.20/908,455,416 = 407,418,810.56/x
  3. Step 3: Cross multiply
    658,233,969.20x = 908,455,416 × 407,418,810.56
  4. Step 4: Simplify right side
    658,233,969.20x = 370,121,825,033,510,016
  5. Step 5: Solve for x
    x = 370,121,825,033,510,016/658,233,969.20
  6. Step 6: Final answer
    x = 562,295,235.97

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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.