Home / 20,515,101.60-30,772,652.40-19,570,317.60

Finding the Fourth Proportional to 20,515,101.60, 30,772,652.40 and 19,570,317.60

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Solution

The fourth proportional to 20,515,101.60, 30,772,652.40 and 19,570,317.60 is: 29,355,476.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,515,101.60 : 30,772,652.40 = 19,570,317.60 : x
  2. Step 2: Convert to fraction form
    20,515,101.60/30,772,652.40 = 19,570,317.60/x
  3. Step 3: Cross multiply
    20,515,101.60x = 30,772,652.40 × 19,570,317.60
  4. Step 4: Simplify right side
    20,515,101.60x = 602,230,580,862,402.25
  5. Step 5: Solve for x
    x = 602,230,580,862,402.25/20,515,101.60
  6. Step 6: Final answer
    x = 29,355,476.40

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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.