Home / 380,518,391.86-525,106,449.58-223,895,643.28

Finding the Fourth Proportional to 380,518,391.86, 525,106,449.58 and 223,895,643.28

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Solution

The fourth proportional to 380,518,391.86, 525,106,449.58 and 223,895,643.28 is: 308,970,732.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,518,391.86 : 525,106,449.58 = 223,895,643.28 : x
  2. Step 2: Convert to fraction form
    380,518,391.86/525,106,449.58 = 223,895,643.28/x
  3. Step 3: Cross multiply
    380,518,391.86x = 525,106,449.58 × 223,895,643.28
  4. Step 4: Simplify right side
    380,518,391.86x = 117,569,046,319,190,976
  5. Step 5: Solve for x
    x = 117,569,046,319,190,976/380,518,391.86
  6. Step 6: Final answer
    x = 308,970,732.65

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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.