Finding the Fourth Proportional to 70,767,378.93, 97,662,125.21 and 39,829,552.05
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Solution
The fourth proportional to 70,767,378.93, 97,662,125.21 and 39,829,552.05 is: 54,966,550.38
Step by Step Solution
- Step 1: Write the proportion equation
70,767,378.93 : 97,662,125.21 = 39,829,552.05 : x - Step 2: Convert to fraction form
70,767,378.93/97,662,125.21 = 39,829,552.05/x - Step 3: Cross multiply
70,767,378.93x = 97,662,125.21 × 39,829,552.05 - Step 4: Simplify right side
70,767,378.93x = 3,889,838,699,166,164 - Step 5: Solve for x
x = 3,889,838,699,166,164/70,767,378.93 - Step 6: Final answer
x = 54,966,550.38
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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.