Home / 85,130,017.44-127,695,027.86-20,433,822.51

Finding the Fourth Proportional to 85,130,017.44, 127,695,027.86 and 20,433,822.51

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Solution

The fourth proportional to 85,130,017.44, 127,695,027.86 and 20,433,822.51 is: 30,650,734.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,130,017.44 : 127,695,027.86 = 20,433,822.51 : x
  2. Step 2: Convert to fraction form
    85,130,017.44/127,695,027.86 = 20,433,822.51/x
  3. Step 3: Cross multiply
    85,130,017.44x = 127,695,027.86 × 20,433,822.51
  4. Step 4: Simplify right side
    85,130,017.44x = 2,609,297,535,154,059.50
  5. Step 5: Solve for x
    x = 2,609,297,535,154,059.50/85,130,017.44
  6. Step 6: Final answer
    x = 30,650,734.18

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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.