Finding the Fourth Proportional to 193,513,855.20, 289,872,651.60 and 97,829,656.80
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Solution
The fourth proportional to 193,513,855.20, 289,872,651.60 and 97,829,656.80 is: 146,543,212.59
Step by Step Solution
- Step 1: Write the proportion equation
193,513,855.20 : 289,872,651.60 = 97,829,656.80 : x - Step 2: Convert to fraction form
193,513,855.20/289,872,651.60 = 97,829,656.80/x - Step 3: Cross multiply
193,513,855.20x = 289,872,651.60 × 97,829,656.80 - Step 4: Simplify right side
193,513,855.20x = 28,358,142,021,733,972 - Step 5: Solve for x
x = 28,358,142,021,733,972/193,513,855.20 - Step 6: Final answer
x = 146,543,212.59
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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.