Home / 1,214,789,265.72-1,825,090,872.12-778,943,869.56

Finding the Fourth Proportional to 1,214,789,265.72, 1,825,090,872.12 and 778,943,869.56

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Solution

The fourth proportional to 1,214,789,265.72, 1,825,090,872.12 and 778,943,869.56 is: 1,170,279,806.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,789,265.72 : 1,825,090,872.12 = 778,943,869.56 : x
  2. Step 2: Convert to fraction form
    1,214,789,265.72/1,825,090,872.12 = 778,943,869.56/x
  3. Step 3: Cross multiply
    1,214,789,265.72x = 1,825,090,872.12 × 778,943,869.56
  4. Step 4: Simplify right side
    1,214,789,265.72x = 1,421,643,346,227,787,776
  5. Step 5: Solve for x
    x = 1,421,643,346,227,787,776/1,214,789,265.72
  6. Step 6: Final answer
    x = 1,170,279,806.01

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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.