Finding the Fourth Proportional to 50,005,128,299.31, 69,005,291,587.68 and 28,302,804,775.68
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Solution
The fourth proportional to 50,005,128,299.31, 69,005,291,587.68 and 28,302,804,775.68 is: 39,056,860,020.54
Step by Step Solution
- Step 1: Write the proportion equation
50,005,128,299.31 : 69,005,291,587.68 = 28,302,804,775.68 : x - Step 2: Convert to fraction form
50,005,128,299.31/69,005,291,587.68 = 28,302,804,775.68/x - Step 3: Cross multiply
50,005,128,299.31x = 69,005,291,587.68 × 28,302,804,775.68 - Step 4: Simplify right side
50,005,128,299.31x = 1,953,043,296,294,980,288,512 - Step 5: Solve for x
x = 1,953,043,296,294,980,288,512/50,005,128,299.31 - Step 6: Final answer
x = 39,056,860,020.54
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1.5x scale
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.