Home / 385,644,703.20-578,467,054.80-330,162,262.80

Finding the Fourth Proportional to 385,644,703.20, 578,467,054.80 and 330,162,262.80

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Solution

The fourth proportional to 385,644,703.20, 578,467,054.80 and 330,162,262.80 is: 495,243,394.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,644,703.20 : 578,467,054.80 = 330,162,262.80 : x
  2. Step 2: Convert to fraction form
    385,644,703.20/578,467,054.80 = 330,162,262.80/x
  3. Step 3: Cross multiply
    385,644,703.20x = 578,467,054.80 × 330,162,262.80
  4. Step 4: Simplify right side
    385,644,703.20x = 190,987,991,768,019,584
  5. Step 5: Solve for x
    x = 190,987,991,768,019,584/385,644,703.20
  6. Step 6: Final answer
    x = 495,243,394.20

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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.