Home / 21,438,051.30-32,157,076.95-12,368,124.90

Finding the Fourth Proportional to 21,438,051.30, 32,157,076.95 and 12,368,124.90

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Solution

The fourth proportional to 21,438,051.30, 32,157,076.95 and 12,368,124.90 is: 18,552,187.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,438,051.30 : 32,157,076.95 = 12,368,124.90 : x
  2. Step 2: Convert to fraction form
    21,438,051.30/32,157,076.95 = 12,368,124.90/x
  3. Step 3: Cross multiply
    21,438,051.30x = 32,157,076.95 × 12,368,124.90
  4. Step 4: Simplify right side
    21,438,051.30x = 397,722,744,136,511.06
  5. Step 5: Solve for x
    x = 397,722,744,136,511.06/21,438,051.30
  6. Step 6: Final answer
    x = 18,552,187.35

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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.