Home / 21,853,131.76-30,158,990.08-12,065,460.40

Finding the Fourth Proportional to 21,853,131.76, 30,158,990.08 and 12,065,460.40

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Solution

The fourth proportional to 21,853,131.76, 30,158,990.08 and 12,065,460.40 is: 16,651,256.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,853,131.76 : 30,158,990.08 = 12,065,460.40 : x
  2. Step 2: Convert to fraction form
    21,853,131.76/30,158,990.08 = 12,065,460.40/x
  3. Step 3: Cross multiply
    21,853,131.76x = 30,158,990.08 × 12,065,460.40
  4. Step 4: Simplify right side
    21,853,131.76x = 363,882,100,514,232.81
  5. Step 5: Solve for x
    x = 363,882,100,514,232.81/21,853,131.76
  6. Step 6: Final answer
    x = 16,651,256.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.