Home / 210,507,866.85-315,783,457.35-79,460,525.64

Finding the Fourth Proportional to 210,507,866.85, 315,783,457.35 and 79,460,525.64

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Solution

The fourth proportional to 210,507,866.85, 315,783,457.35 and 79,460,525.64 is: 119,198,963.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,507,866.85 : 315,783,457.35 = 79,460,525.64 : x
  2. Step 2: Convert to fraction form
    210,507,866.85/315,783,457.35 = 79,460,525.64/x
  3. Step 3: Cross multiply
    210,507,866.85x = 315,783,457.35 × 79,460,525.64
  4. Step 4: Simplify right side
    210,507,866.85x = 25,092,319,510,781,096
  5. Step 5: Solve for x
    x = 25,092,319,510,781,096/210,507,866.85
  6. Step 6: Final answer
    x = 119,198,963.37

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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.