Home / 1,315,252,029.36-1,815,047,649.48-786,615,930.57

Finding the Fourth Proportional to 1,315,252,029.36, 1,815,047,649.48 and 786,615,930.57

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Solution

The fourth proportional to 1,315,252,029.36, 1,815,047,649.48 and 786,615,930.57 is: 1,085,529,893.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,252,029.36 : 1,815,047,649.48 = 786,615,930.57 : x
  2. Step 2: Convert to fraction form
    1,315,252,029.36/1,815,047,649.48 = 786,615,930.57/x
  3. Step 3: Cross multiply
    1,315,252,029.36x = 1,815,047,649.48 × 786,615,930.57
  4. Step 4: Simplify right side
    1,315,252,029.36x = 1,427,745,395,815,526,144
  5. Step 5: Solve for x
    x = 1,427,745,395,815,526,144/1,315,252,029.36
  6. Step 6: Final answer
    x = 1,085,529,893.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.