Home / 12,642,257.04-18,966,403.08-4,122,603.60

Finding the Fourth Proportional to 12,642,257.04, 18,966,403.08 and 4,122,603.60

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Solution

The fourth proportional to 12,642,257.04, 18,966,403.08 and 4,122,603.60 is: 6,184,889.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,642,257.04 : 18,966,403.08 = 4,122,603.60 : x
  2. Step 2: Convert to fraction form
    12,642,257.04/18,966,403.08 = 4,122,603.60/x
  3. Step 3: Cross multiply
    12,642,257.04x = 18,966,403.08 × 4,122,603.60
  4. Step 4: Simplify right side
    12,642,257.04x = 78,190,961,616,659.08
  5. Step 5: Solve for x
    x = 78,190,961,616,659.08/12,642,257.04
  6. Step 6: Final answer
    x = 6,184,889.40

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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.