Home / 603,655,347.20-905,483,020.80-215,664,051.20

Finding the Fourth Proportional to 603,655,347.20, 905,483,020.80 and 215,664,051.20

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Solution

The fourth proportional to 603,655,347.20, 905,483,020.80 and 215,664,051.20 is: 323,496,076.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,655,347.20 : 905,483,020.80 = 215,664,051.20 : x
  2. Step 2: Convert to fraction form
    603,655,347.20/905,483,020.80 = 215,664,051.20/x
  3. Step 3: Cross multiply
    603,655,347.20x = 905,483,020.80 × 215,664,051.20
  4. Step 4: Simplify right side
    603,655,347.20x = 195,280,136,558,541,856
  5. Step 5: Solve for x
    x = 195,280,136,558,541,856/603,655,347.20
  6. Step 6: Final answer
    x = 323,496,076.80

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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.