Home / 380,518,378.64-525,106,430.28-223,895,629.52

Finding the Fourth Proportional to 380,518,378.64, 525,106,430.28 and 223,895,629.52

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Solution

The fourth proportional to 380,518,378.64, 525,106,430.28 and 223,895,629.52 is: 308,970,713.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,518,378.64 : 525,106,430.28 = 223,895,629.52 : x
  2. Step 2: Convert to fraction form
    380,518,378.64/525,106,430.28 = 223,895,629.52/x
  3. Step 3: Cross multiply
    380,518,378.64x = 525,106,430.28 × 223,895,629.52
  4. Step 4: Simplify right side
    380,518,378.64x = 117,569,034,772,540,592
  5. Step 5: Solve for x
    x = 117,569,034,772,540,592/380,518,378.64
  6. Step 6: Final answer
    x = 308,970,713.04

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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.