Home / 380,768,059.80-571,170,752.10-199,369,531.80

Finding the Fourth Proportional to 380,768,059.80, 571,170,752.10 and 199,369,531.80

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Solution

The fourth proportional to 380,768,059.80, 571,170,752.10 and 199,369,531.80 is: 299,064,069.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,768,059.80 : 571,170,752.10 = 199,369,531.80 : x
  2. Step 2: Convert to fraction form
    380,768,059.80/571,170,752.10 = 199,369,531.80/x
  3. Step 3: Cross multiply
    380,768,059.80x = 571,170,752.10 × 199,369,531.80
  4. Step 4: Simplify right side
    380,768,059.80x = 113,874,045,424,030,880
  5. Step 5: Solve for x
    x = 113,874,045,424,030,880/380,768,059.80
  6. Step 6: Final answer
    x = 299,064,069.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.