Home / 56,776,009.80-85,164,014.70-20,401,825.80

Finding the Fourth Proportional to 56,776,009.80, 85,164,014.70 and 20,401,825.80

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Solution

The fourth proportional to 56,776,009.80, 85,164,014.70 and 20,401,825.80 is: 30,602,738.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,776,009.80 : 85,164,014.70 = 20,401,825.80 : x
  2. Step 2: Convert to fraction form
    56,776,009.80/85,164,014.70 = 20,401,825.80/x
  3. Step 3: Cross multiply
    56,776,009.80x = 85,164,014.70 × 20,401,825.80
  4. Step 4: Simplify right side
    56,776,009.80x = 1,737,501,392,338,039.50
  5. Step 5: Solve for x
    x = 1,737,501,392,338,039.50/56,776,009.80
  6. Step 6: Final answer
    x = 30,602,738.70

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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.