Home / 384,912,400.80-577,368,601.20-320,289,175.20

Finding the Fourth Proportional to 384,912,400.80, 577,368,601.20 and 320,289,175.20

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Solution

The fourth proportional to 384,912,400.80, 577,368,601.20 and 320,289,175.20 is: 480,433,762.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,912,400.80 : 577,368,601.20 = 320,289,175.20 : x
  2. Step 2: Convert to fraction form
    384,912,400.80/577,368,601.20 = 320,289,175.20/x
  3. Step 3: Cross multiply
    384,912,400.80x = 577,368,601.20 × 320,289,175.20
  4. Step 4: Simplify right side
    384,912,400.80x = 184,924,913,064,725,728
  5. Step 5: Solve for x
    x = 184,924,913,064,725,728/384,912,400.80
  6. Step 6: Final answer
    x = 480,433,762.80

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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.