Home / 85,130,015.49-127,695,024.92-20,433,820.56

Finding the Fourth Proportional to 85,130,015.49, 127,695,024.92 and 20,433,820.56

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Solution

The fourth proportional to 85,130,015.49, 127,695,024.92 and 20,433,820.56 is: 30,650,731.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,130,015.49 : 127,695,024.92 = 20,433,820.56 : x
  2. Step 2: Convert to fraction form
    85,130,015.49/127,695,024.92 = 20,433,820.56/x
  3. Step 3: Cross multiply
    85,130,015.49x = 127,695,024.92 × 20,433,820.56
  4. Step 4: Simplify right side
    85,130,015.49x = 2,609,297,225,154,025
  5. Step 5: Solve for x
    x = 2,609,297,225,154,025/85,130,015.49
  6. Step 6: Final answer
    x = 30,650,731.24

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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.