Home / 1,238,921,994.74-1,857,703,734.95-491,180,272.85

Finding the Fourth Proportional to 1,238,921,994.74, 1,857,703,734.95 and 491,180,272.85

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Solution

The fourth proportional to 1,238,921,994.74, 1,857,703,734.95 and 491,180,272.85 is: 736,501,112.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,921,994.74 : 1,857,703,734.95 = 491,180,272.85 : x
  2. Step 2: Convert to fraction form
    1,238,921,994.74/1,857,703,734.95 = 491,180,272.85/x
  3. Step 3: Cross multiply
    1,238,921,994.74x = 1,857,703,734.95 × 491,180,272.85
  4. Step 4: Simplify right side
    1,238,921,994.74x = 912,467,427,409,393,408
  5. Step 5: Solve for x
    x = 912,467,427,409,393,408/1,238,921,994.74
  6. Step 6: Final answer
    x = 736,501,112.49

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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.