Home / 1,455,090,759.60-2,182,636,139.40-419,985,409.20

Finding the Fourth Proportional to 1,455,090,759.60, 2,182,636,139.40 and 419,985,409.20

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Solution

The fourth proportional to 1,455,090,759.60, 2,182,636,139.40 and 419,985,409.20 is: 629,978,113.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455,090,759.60 : 2,182,636,139.40 = 419,985,409.20 : x
  2. Step 2: Convert to fraction form
    1,455,090,759.60/2,182,636,139.40 = 419,985,409.20/x
  3. Step 3: Cross multiply
    1,455,090,759.60x = 2,182,636,139.40 × 419,985,409.20
  4. Step 4: Simplify right side
    1,455,090,759.60x = 916,675,332,140,617,216
  5. Step 5: Solve for x
    x = 916,675,332,140,617,216/1,455,090,759.60
  6. Step 6: Final answer
    x = 629,978,113.80

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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.