Home / 378,638,192.80-568,137,157.95-262,232,684.76

Finding the Fourth Proportional to 378,638,192.80, 568,137,157.95 and 262,232,684.76

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Solution

The fourth proportional to 378,638,192.80, 568,137,157.95 and 262,232,684.76 is: 393,473,598.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,638,192.80 : 568,137,157.95 = 262,232,684.76 : x
  2. Step 2: Convert to fraction form
    378,638,192.80/568,137,157.95 = 262,232,684.76/x
  3. Step 3: Cross multiply
    378,638,192.80x = 568,137,157.95 × 262,232,684.76
  4. Step 4: Simplify right side
    378,638,192.80x = 148,984,132,244,258,560
  5. Step 5: Solve for x
    x = 148,984,132,244,258,560/378,638,192.80
  6. Step 6: Final answer
    x = 393,473,598.48

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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.