Home / 1,427,574,947.96-2,141,261,333.56-378,289,919.84

Finding the Fourth Proportional to 1,427,574,947.96, 2,141,261,333.56 and 378,289,919.84

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Solution

The fourth proportional to 1,427,574,947.96, 2,141,261,333.56 and 378,289,919.84 is: 567,408,092.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,574,947.96 : 2,141,261,333.56 = 378,289,919.84 : x
  2. Step 2: Convert to fraction form
    1,427,574,947.96/2,141,261,333.56 = 378,289,919.84/x
  3. Step 3: Cross multiply
    1,427,574,947.96x = 2,141,261,333.56 × 378,289,919.84
  4. Step 4: Simplify right side
    1,427,574,947.96x = 810,017,578,228,903,808
  5. Step 5: Solve for x
    x = 810,017,578,228,903,808/1,427,574,947.96
  6. Step 6: Final answer
    x = 567,408,092.57

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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.