Home / 378,638,193.80-568,137,159.45-262,232,685.76

Finding the Fourth Proportional to 378,638,193.80, 568,137,159.45 and 262,232,685.76

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Solution

The fourth proportional to 378,638,193.80, 568,137,159.45 and 262,232,685.76 is: 393,473,599.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,638,193.80 : 568,137,159.45 = 262,232,685.76 : x
  2. Step 2: Convert to fraction form
    378,638,193.80/568,137,159.45 = 262,232,685.76/x
  3. Step 3: Cross multiply
    378,638,193.80x = 568,137,159.45 × 262,232,685.76
  4. Step 4: Simplify right side
    378,638,193.80x = 148,984,133,202,630,880
  5. Step 5: Solve for x
    x = 148,984,133,202,630,880/378,638,193.80
  6. Step 6: Final answer
    x = 393,473,599.98

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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.