Finding the Fourth Proportional to 28,438,246,410, 39,245,414,177.16 and 16,230,706,659.92
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Solution
The fourth proportional to 28,438,246,410, 39,245,414,177.16 and 16,230,706,659.92 is: 22,398,737,111.74
Step by Step Solution
- Step 1: Write the proportion equation
28,438,246,410 : 39,245,414,177.16 = 16,230,706,659.92 : x - Step 2: Convert to fraction form
28,438,246,410/39,245,414,177.16 = 16,230,706,659.92/x - Step 3: Cross multiply
28,438,246,410x = 39,245,414,177.16 × 16,230,706,659.92 - Step 4: Simplify right side
28,438,246,410x = 636,980,805,256,549,629,952 - Step 5: Solve for x
x = 636,980,805,256,549,629,952/28,438,246,410 - Step 6: Final answer
x = 22,398,737,111.74
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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.