Home / 21,381,466.60-29,510,710.50-12,684,466.60

Finding the Fourth Proportional to 21,381,466.60, 29,510,710.50 and 12,684,466.60

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Solution

The fourth proportional to 21,381,466.60, 29,510,710.50 and 12,684,466.60 is: 17,507,106.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,381,466.60 : 29,510,710.50 = 12,684,466.60 : x
  2. Step 2: Convert to fraction form
    21,381,466.60/29,510,710.50 = 12,684,466.60/x
  3. Step 3: Cross multiply
    21,381,466.60x = 29,510,710.50 × 12,684,466.60
  4. Step 4: Simplify right side
    21,381,466.60x = 374,327,621,679,519.31
  5. Step 5: Solve for x
    x = 374,327,621,679,519.31/21,381,466.60
  6. Step 6: Final answer
    x = 17,507,106.91

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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.