Home / 12,987,776.70-19,477,072.35-4,466,131.20

Finding the Fourth Proportional to 12,987,776.70, 19,477,072.35 and 4,466,131.20

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Solution

The fourth proportional to 12,987,776.70, 19,477,072.35 and 4,466,131.20 is: 6,697,617.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,987,776.70 : 19,477,072.35 = 4,466,131.20 : x
  2. Step 2: Convert to fraction form
    12,987,776.70/19,477,072.35 = 4,466,131.20/x
  3. Step 3: Cross multiply
    12,987,776.70x = 19,477,072.35 × 4,466,131.20
  4. Step 4: Simplify right side
    12,987,776.70x = 86,987,160,506,992.33
  5. Step 5: Solve for x
    x = 86,987,160,506,992.33/12,987,776.70
  6. Step 6: Final answer
    x = 6,697,617.50

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1.5x scale

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.