Home / 402,880,109.46-554,631,493.20-384,370,019.42

Finding the Fourth Proportional to 402,880,109.46, 554,631,493.20 and 384,370,019.42

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Solution

The fourth proportional to 402,880,109.46, 554,631,493.20 and 384,370,019.42 is: 529,149,274.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,880,109.46 : 554,631,493.20 = 384,370,019.42 : x
  2. Step 2: Convert to fraction form
    402,880,109.46/554,631,493.20 = 384,370,019.42/x
  3. Step 3: Cross multiply
    402,880,109.46x = 554,631,493.20 × 384,370,019.42
  4. Step 4: Simplify right side
    402,880,109.46x = 213,183,717,812,227,616
  5. Step 5: Solve for x
    x = 213,183,717,812,227,616/402,880,109.46
  6. Step 6: Final answer
    x = 529,149,274.95

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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.