Home / 380,518,395.87-525,106,455.09-223,895,647.29

Finding the Fourth Proportional to 380,518,395.87, 525,106,455.09 and 223,895,647.29

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Solution

The fourth proportional to 380,518,395.87, 525,106,455.09 and 223,895,647.29 is: 308,970,738.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,518,395.87 : 525,106,455.09 = 223,895,647.29 : x
  2. Step 2: Convert to fraction form
    380,518,395.87/525,106,455.09 = 223,895,647.29/x
  3. Step 3: Cross multiply
    380,518,395.87x = 525,106,455.09 × 223,895,647.29
  4. Step 4: Simplify right side
    380,518,395.87x = 117,569,049,658,532,848
  5. Step 5: Solve for x
    x = 117,569,049,658,532,848/380,518,395.87
  6. Step 6: Final answer
    x = 308,970,738.17

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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.