Home / 12,129,486.12-16,737,970.50-6,621,762.60

Finding the Fourth Proportional to 12,129,486.12, 16,737,970.50 and 6,621,762.60

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Solution

The fourth proportional to 12,129,486.12, 16,737,970.50 and 6,621,762.60 is: 9,137,639.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,129,486.12 : 16,737,970.50 = 6,621,762.60 : x
  2. Step 2: Convert to fraction form
    12,129,486.12/16,737,970.50 = 6,621,762.60/x
  3. Step 3: Cross multiply
    12,129,486.12x = 16,737,970.50 × 6,621,762.60
  4. Step 4: Simplify right side
    12,129,486.12x = 110,834,867,056,803.30
  5. Step 5: Solve for x
    x = 110,834,867,056,803.30/12,129,486.12
  6. Step 6: Final answer
    x = 9,137,639.13

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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.