Finding the Fourth Proportional to 13,306,728,565.52, 18,363,430,539.24 and 7,366,380,269.84
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Solution
The fourth proportional to 13,306,728,565.52, 18,363,430,539.24 and 7,366,380,269.84 is: 10,165,685,107.71
Step by Step Solution
- Step 1: Write the proportion equation
13,306,728,565.52 : 18,363,430,539.24 = 7,366,380,269.84 : x - Step 2: Convert to fraction form
13,306,728,565.52/18,363,430,539.24 = 7,366,380,269.84/x - Step 3: Cross multiply
13,306,728,565.52x = 18,363,430,539.24 × 7,366,380,269.84 - Step 4: Simplify right side
13,306,728,565.52x = 135,272,012,410,834,862,080 - Step 5: Solve for x
x = 135,272,012,410,834,862,080/13,306,728,565.52 - Step 6: Final answer
x = 10,165,685,107.71
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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.