Home / 1,318,057,835,518.10-1,977,093,417,672.80-411,419,643,137.86

Finding the Fourth Proportional to 1,318,057,835,518.10, 1,977,093,417,672.80 and 411,419,643,137.86

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Solution

The fourth proportional to 1,318,057,835,518.10, 1,977,093,417,672.80 and 411,419,643,137.86 is: 617,131,544,936.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,057,835,518.10 : 1,977,093,417,672.80 = 411,419,643,137.86 : x
  2. Step 2: Convert to fraction form
    1,318,057,835,518.10/1,977,093,417,672.80 = 411,419,643,137.86/x
  3. Step 3: Cross multiply
    1,318,057,835,518.10x = 1,977,093,417,672.80 × 411,419,643,137.86
  4. Step 4: Simplify right side
    1,318,057,835,518.10x = 813,415,068,349,155,306,897,408
  5. Step 5: Solve for x
    x = 813,415,068,349,155,306,897,408/1,318,057,835,518.10
  6. Step 6: Final answer
    x = 617,131,544,936.66

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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.