Home / 12,180,642.03-18,269,675.55-6,421,068.18

Finding the Fourth Proportional to 12,180,642.03, 18,269,675.55 and 6,421,068.18

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Solution

The fourth proportional to 12,180,642.03, 18,269,675.55 and 6,421,068.18 is: 9,630,923.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,180,642.03 : 18,269,675.55 = 6,421,068.18 : x
  2. Step 2: Convert to fraction form
    12,180,642.03/18,269,675.55 = 6,421,068.18/x
  3. Step 3: Cross multiply
    12,180,642.03x = 18,269,675.55 × 6,421,068.18
  4. Step 4: Simplify right side
    12,180,642.03x = 117,310,832,333,029
  5. Step 5: Solve for x
    x = 117,310,832,333,029/12,180,642.03
  6. Step 6: Final answer
    x = 9,630,923.56

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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.