Home / 21,093,312.90-29,109,902.02-11,800,328.59

Finding the Fourth Proportional to 21,093,312.90, 29,109,902.02 and 11,800,328.59

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Solution

The fourth proportional to 21,093,312.90, 29,109,902.02 and 11,800,328.59 is: 16,285,085.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,093,312.90 : 29,109,902.02 = 11,800,328.59 : x
  2. Step 2: Convert to fraction form
    21,093,312.90/29,109,902.02 = 11,800,328.59/x
  3. Step 3: Cross multiply
    21,093,312.90x = 29,109,902.02 × 11,800,328.59
  4. Step 4: Simplify right side
    21,093,312.90x = 343,506,409,164,027.81
  5. Step 5: Solve for x
    x = 343,506,409,164,027.81/21,093,312.90
  6. Step 6: Final answer
    x = 16,285,085.75

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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.