Home / 326,600,999.40-489,901,499.10-223,136,653.80

Finding the Fourth Proportional to 326,600,999.40, 489,901,499.10 and 223,136,653.80

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Solution

The fourth proportional to 326,600,999.40, 489,901,499.10 and 223,136,653.80 is: 334,704,980.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,600,999.40 : 489,901,499.10 = 223,136,653.80 : x
  2. Step 2: Convert to fraction form
    326,600,999.40/489,901,499.10 = 223,136,653.80/x
  3. Step 3: Cross multiply
    326,600,999.40x = 489,901,499.10 × 223,136,653.80
  4. Step 4: Simplify right side
    326,600,999.40x = 109,314,981,200,777,728
  5. Step 5: Solve for x
    x = 109,314,981,200,777,728/326,600,999.40
  6. Step 6: Final answer
    x = 334,704,980.70

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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.