Home / 20,695,752.40-31,043,628.60-19,766,779.60

Finding the Fourth Proportional to 20,695,752.40, 31,043,628.60 and 19,766,779.60

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Solution

The fourth proportional to 20,695,752.40, 31,043,628.60 and 19,766,779.60 is: 29,650,169.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,695,752.40 : 31,043,628.60 = 19,766,779.60 : x
  2. Step 2: Convert to fraction form
    20,695,752.40/31,043,628.60 = 19,766,779.60/x
  3. Step 3: Cross multiply
    20,695,752.40x = 31,043,628.60 × 19,766,779.60
  4. Step 4: Simplify right side
    20,695,752.40x = 613,632,564,520,456.62
  5. Step 5: Solve for x
    x = 613,632,564,520,456.62/20,695,752.40
  6. Step 6: Final answer
    x = 29,650,169.40

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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.