Home / 521,520,789,901.20-782,281,184,851.80-447,136,056,013.20

Finding the Fourth Proportional to 521,520,789,901.20, 782,281,184,851.80 and 447,136,056,013.20

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Solution

The fourth proportional to 521,520,789,901.20, 782,281,184,851.80 and 447,136,056,013.20 is: 670,704,084,019.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,520,789,901.20 : 782,281,184,851.80 = 447,136,056,013.20 : x
  2. Step 2: Convert to fraction form
    521,520,789,901.20/782,281,184,851.80 = 447,136,056,013.20/x
  3. Step 3: Cross multiply
    521,520,789,901.20x = 782,281,184,851.80 × 447,136,056,013.20
  4. Step 4: Simplify right side
    521,520,789,901.20x = 349,786,123,687,966,913,069,056
  5. Step 5: Solve for x
    x = 349,786,123,687,966,913,069,056/521,520,789,901.20
  6. Step 6: Final answer
    x = 670,704,084,019.80

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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.