Home / 20,059,367.80-30,089,051.70-12,879,009.40

Finding the Fourth Proportional to 20,059,367.80, 30,089,051.70 and 12,879,009.40

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Solution

The fourth proportional to 20,059,367.80, 30,089,051.70 and 12,879,009.40 is: 19,318,514.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,059,367.80 : 30,089,051.70 = 12,879,009.40 : x
  2. Step 2: Convert to fraction form
    20,059,367.80/30,089,051.70 = 12,879,009.40/x
  3. Step 3: Cross multiply
    20,059,367.80x = 30,089,051.70 × 12,879,009.40
  4. Step 4: Simplify right side
    20,059,367.80x = 387,517,179,681,386
  5. Step 5: Solve for x
    x = 387,517,179,681,386/20,059,367.80
  6. Step 6: Final answer
    x = 19,318,514.10

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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.