Home / 21,886,867.20-32,830,300.80-20,123,270.40

Finding the Fourth Proportional to 21,886,867.20, 32,830,300.80 and 20,123,270.40

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Solution

The fourth proportional to 21,886,867.20, 32,830,300.80 and 20,123,270.40 is: 30,184,905.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,886,867.20 : 32,830,300.80 = 20,123,270.40 : x
  2. Step 2: Convert to fraction form
    21,886,867.20/32,830,300.80 = 20,123,270.40/x
  3. Step 3: Cross multiply
    21,886,867.20x = 32,830,300.80 × 20,123,270.40
  4. Step 4: Simplify right side
    21,886,867.20x = 660,653,020,311,736.25
  5. Step 5: Solve for x
    x = 660,653,020,311,736.25/21,886,867.20
  6. Step 6: Final answer
    x = 30,184,905.60

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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.