Home / 20,736,000.40-31,104,000.60-18,645,811.60

Finding the Fourth Proportional to 20,736,000.40, 31,104,000.60 and 18,645,811.60

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Solution

The fourth proportional to 20,736,000.40, 31,104,000.60 and 18,645,811.60 is: 27,968,717.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,000.40 : 31,104,000.60 = 18,645,811.60 : x
  2. Step 2: Convert to fraction form
    20,736,000.40/31,104,000.60 = 18,645,811.60/x
  3. Step 3: Cross multiply
    20,736,000.40x = 31,104,000.60 × 18,645,811.60
  4. Step 4: Simplify right side
    20,736,000.40x = 579,959,335,193,887
  5. Step 5: Solve for x
    x = 579,959,335,193,887/20,736,000.40
  6. Step 6: Final answer
    x = 27,968,717.40

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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.