Home / 85,130,026.03-127,695,040.72-20,433,831.09

Finding the Fourth Proportional to 85,130,026.03, 127,695,040.72 and 20,433,831.09

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Solution

The fourth proportional to 85,130,026.03, 127,695,040.72 and 20,433,831.09 is: 30,650,747.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,130,026.03 : 127,695,040.72 = 20,433,831.09 : x
  2. Step 2: Convert to fraction form
    85,130,026.03/127,695,040.72 = 20,433,831.09/x
  3. Step 3: Cross multiply
    85,130,026.03x = 127,695,040.72 × 20,433,831.09
  4. Step 4: Simplify right side
    85,130,026.03x = 2,609,298,892,464,677
  5. Step 5: Solve for x
    x = 2,609,298,892,464,677/85,130,026.03
  6. Step 6: Final answer
    x = 30,650,747.03

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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.