Finding the Fourth Proportional to 5,129,617,988.40, 7,699,402,579.57 and 2,475,541,852.76
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Solution
The fourth proportional to 5,129,617,988.40, 7,699,402,579.57 and 2,475,541,852.76 is: 3,715,713,990.79
Step by Step Solution
- Step 1: Write the proportion equation
5,129,617,988.40 : 7,699,402,579.57 = 2,475,541,852.76 : x - Step 2: Convert to fraction form
5,129,617,988.40/7,699,402,579.57 = 2,475,541,852.76/x - Step 3: Cross multiply
5,129,617,988.40x = 7,699,402,579.57 × 2,475,541,852.76 - Step 4: Simplify right side
5,129,617,988.40x = 19,060,193,326,929,158,144 - Step 5: Solve for x
x = 19,060,193,326,929,158,144/5,129,617,988.40 - Step 6: Final answer
x = 3,715,713,990.79
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.