Home / 56,776,000.80-85,164,001.20-20,401,816.80

Finding the Fourth Proportional to 56,776,000.80, 85,164,001.20 and 20,401,816.80

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Solution

The fourth proportional to 56,776,000.80, 85,164,001.20 and 20,401,816.80 is: 30,602,725.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,776,000.80 : 85,164,001.20 = 20,401,816.80 : x
  2. Step 2: Convert to fraction form
    56,776,000.80/85,164,001.20 = 20,401,816.80/x
  3. Step 3: Cross multiply
    56,776,000.80x = 85,164,001.20 × 20,401,816.80
  4. Step 4: Simplify right side
    56,776,000.80x = 1,737,500,350,437,380.25
  5. Step 5: Solve for x
    x = 1,737,500,350,437,380.25/56,776,000.80
  6. Step 6: Final answer
    x = 30,602,725.20

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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.