Home / 20,772,016.60-31,158,024.90-19,779,993.40

Finding the Fourth Proportional to 20,772,016.60, 31,158,024.90 and 19,779,993.40

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Solution

The fourth proportional to 20,772,016.60, 31,158,024.90 and 19,779,993.40 is: 29,669,990.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,772,016.60 : 31,158,024.90 = 19,779,993.40 : x
  2. Step 2: Convert to fraction form
    20,772,016.60/31,158,024.90 = 19,779,993.40/x
  3. Step 3: Cross multiply
    20,772,016.60x = 31,158,024.90 × 19,779,993.40
  4. Step 4: Simplify right side
    20,772,016.60x = 616,305,526,879,035.62
  5. Step 5: Solve for x
    x = 616,305,526,879,035.62/20,772,016.60
  6. Step 6: Final answer
    x = 29,669,990.10

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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.