Home / 319,485,901.90-479,228,852.85-285,048,525.10

Finding the Fourth Proportional to 319,485,901.90, 479,228,852.85 and 285,048,525.10

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Solution

The fourth proportional to 319,485,901.90, 479,228,852.85 and 285,048,525.10 is: 427,572,787.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,485,901.90 : 479,228,852.85 = 285,048,525.10 : x
  2. Step 2: Convert to fraction form
    319,485,901.90/479,228,852.85 = 285,048,525.10/x
  3. Step 3: Cross multiply
    319,485,901.90x = 479,228,852.85 × 285,048,525.10
  4. Step 4: Simplify right side
    319,485,901.90x = 136,603,477,690,257,456
  5. Step 5: Solve for x
    x = 136,603,477,690,257,456/319,485,901.90
  6. Step 6: Final answer
    x = 427,572,787.65

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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.