Home / 21,153,779.60-31,731,706.20-11,076,083.60

Finding the Fourth Proportional to 21,153,779.60, 31,731,706.20 and 11,076,083.60

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Solution

The fourth proportional to 21,153,779.60, 31,731,706.20 and 11,076,083.60 is: 16,614,668.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,153,779.60 : 31,731,706.20 = 11,076,083.60 : x
  2. Step 2: Convert to fraction form
    21,153,779.60/31,731,706.20 = 11,076,083.60/x
  3. Step 3: Cross multiply
    21,153,779.60x = 31,731,706.20 × 11,076,083.60
  4. Step 4: Simplify right side
    21,153,779.60x = 351,463,030,641,838.31
  5. Step 5: Solve for x
    x = 351,463,030,641,838.31/21,153,779.60
  6. Step 6: Final answer
    x = 16,614,668.27

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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.