Finding the Fourth Proportional to 115,539,650,560.21, 159,378,473,392.68 and 72,060,450,175.00
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Solution
The fourth proportional to 115,539,650,560.21, 159,378,473,392.68 and 72,060,450,175.00 is: 99,402,105,555.92
Step by Step Solution
- Step 1: Write the proportion equation
115,539,650,560.21 : 159,378,473,392.68 = 72,060,450,175.00 : x - Step 2: Convert to fraction form
115,539,650,560.21/159,378,473,392.68 = 72,060,450,175.00/x - Step 3: Cross multiply
115,539,650,560.21x = 159,378,473,392.68 × 72,060,450,175.00 - Step 4: Simplify right side
115,539,650,560.21x = 11,484,884,540,879,982,821,376 - Step 5: Solve for x
x = 11,484,884,540,879,982,821,376/115,539,650,560.21 - Step 6: Final answer
x = 99,402,105,555.92
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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.