Home / 21,862,111.80-32,793,167.70-20,219,820.60

Finding the Fourth Proportional to 21,862,111.80, 32,793,167.70 and 20,219,820.60

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Solution

The fourth proportional to 21,862,111.80, 32,793,167.70 and 20,219,820.60 is: 30,329,730.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,862,111.80 : 32,793,167.70 = 20,219,820.60 : x
  2. Step 2: Convert to fraction form
    21,862,111.80/32,793,167.70 = 20,219,820.60/x
  3. Step 3: Cross multiply
    21,862,111.80x = 32,793,167.70 × 20,219,820.60
  4. Step 4: Simplify right side
    21,862,111.80x = 663,071,967,799,714.62
  5. Step 5: Solve for x
    x = 663,071,967,799,714.62/21,862,111.80
  6. Step 6: Final answer
    x = 30,329,730.90

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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.