Home / 15,540,964.70-23,311,447.05-12,139,742.30

Finding the Fourth Proportional to 15,540,964.70, 23,311,447.05 and 12,139,742.30

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Solution

The fourth proportional to 15,540,964.70, 23,311,447.05 and 12,139,742.30 is: 18,209,613.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,540,964.70 : 23,311,447.05 = 12,139,742.30 : x
  2. Step 2: Convert to fraction form
    15,540,964.70/23,311,447.05 = 12,139,742.30/x
  3. Step 3: Cross multiply
    15,540,964.70x = 23,311,447.05 × 12,139,742.30
  4. Step 4: Simplify right side
    15,540,964.70x = 282,994,959,827,095.25
  5. Step 5: Solve for x
    x = 282,994,959,827,095.25/15,540,964.70
  6. Step 6: Final answer
    x = 18,209,613.45

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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.