Home / 38,889,633.96-53,668,257.90-21,486,379.80

Finding the Fourth Proportional to 38,889,633.96, 53,668,257.90 and 21,486,379.80

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Solution

The fourth proportional to 38,889,633.96, 53,668,257.90 and 21,486,379.80 is: 29,651,515.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,889,633.96 : 53,668,257.90 = 21,486,379.80 : x
  2. Step 2: Convert to fraction form
    38,889,633.96/53,668,257.90 = 21,486,379.80/x
  3. Step 3: Cross multiply
    38,889,633.96x = 53,668,257.90 × 21,486,379.80
  4. Step 4: Simplify right side
    38,889,633.96x = 1,153,136,572,443,750.50
  5. Step 5: Solve for x
    x = 1,153,136,572,443,750.50/38,889,633.96
  6. Step 6: Final answer
    x = 29,651,515.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.