Home / 20,772,017.60-31,158,026.40-19,779,994.40

Finding the Fourth Proportional to 20,772,017.60, 31,158,026.40 and 19,779,994.40

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Solution

The fourth proportional to 20,772,017.60, 31,158,026.40 and 19,779,994.40 is: 29,669,991.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,772,017.60 : 31,158,026.40 = 19,779,994.40 : x
  2. Step 2: Convert to fraction form
    20,772,017.60/31,158,026.40 = 19,779,994.40/x
  3. Step 3: Cross multiply
    20,772,017.60x = 31,158,026.40 × 19,779,994.40
  4. Step 4: Simplify right side
    20,772,017.60x = 616,305,587,707,052.12
  5. Step 5: Solve for x
    x = 616,305,587,707,052.12/20,772,017.60
  6. Step 6: Final answer
    x = 29,669,991.60

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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.