Home / 85,881,837.60-128,778,627.60-25,289,690.40

Finding the Fourth Proportional to 85,881,837.60, 128,778,627.60 and 25,289,690.40

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Solution

The fourth proportional to 85,881,837.60, 128,778,627.60 and 25,289,690.40 is: 37,921,540.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,881,837.60 : 128,778,627.60 = 25,289,690.40 : x
  2. Step 2: Convert to fraction form
    85,881,837.60/128,778,627.60 = 25,289,690.40/x
  3. Step 3: Cross multiply
    85,881,837.60x = 128,778,627.60 × 25,289,690.40
  4. Step 4: Simplify right side
    85,881,837.60x = 3,256,771,622,140,894.50
  5. Step 5: Solve for x
    x = 3,256,771,622,140,894.50/85,881,837.60
  6. Step 6: Final answer
    x = 37,921,540.96

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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.