Home / 1,262,205,759.40-1,892,412,843.90-572,443,455.40

Finding the Fourth Proportional to 1,262,205,759.40, 1,892,412,843.90 and 572,443,455.40

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Solution

The fourth proportional to 1,262,205,759.40, 1,892,412,843.90 and 572,443,455.40 is: 858,258,916.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,205,759.40 : 1,892,412,843.90 = 572,443,455.40 : x
  2. Step 2: Convert to fraction form
    1,262,205,759.40/1,892,412,843.90 = 572,443,455.40/x
  3. Step 3: Cross multiply
    1,262,205,759.40x = 1,892,412,843.90 × 572,443,455.40
  4. Step 4: Simplify right side
    1,262,205,759.40x = 1,083,299,347,405,456,768
  5. Step 5: Solve for x
    x = 1,083,299,347,405,456,768/1,262,205,759.40
  6. Step 6: Final answer
    x = 858,258,916.45

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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.