Home / 380,518,380.64-525,106,433.04-223,895,631.52

Finding the Fourth Proportional to 380,518,380.64, 525,106,433.04 and 223,895,631.52

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Solution

The fourth proportional to 380,518,380.64, 525,106,433.04 and 223,895,631.52 is: 308,970,715.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,518,380.64 : 525,106,433.04 = 223,895,631.52 : x
  2. Step 2: Convert to fraction form
    380,518,380.64/525,106,433.04 = 223,895,631.52/x
  3. Step 3: Cross multiply
    380,518,380.64x = 525,106,433.04 × 223,895,631.52
  4. Step 4: Simplify right side
    380,518,380.64x = 117,569,036,440,705,408
  5. Step 5: Solve for x
    x = 117,569,036,440,705,408/380,518,380.64
  6. Step 6: Final answer
    x = 308,970,715.80

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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.