Finding the Fourth Proportional to 408,945,302.70, 613,402,207.65 and 136,316,069.70
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Solution
The fourth proportional to 408,945,302.70, 613,402,207.65 and 136,316,069.70 is: 204,468,855.71
Step by Step Solution
- Step 1: Write the proportion equation
408,945,302.70 : 613,402,207.65 = 136,316,069.70 : x - Step 2: Convert to fraction form
408,945,302.70/613,402,207.65 = 136,316,069.70/x - Step 3: Cross multiply
408,945,302.70x = 613,402,207.65 × 136,316,069.70 - Step 4: Simplify right side
408,945,302.70x = 83,616,578,092,151,264 - Step 5: Solve for x
x = 83,616,578,092,151,264/408,945,302.70 - Step 6: Final answer
x = 204,468,855.71
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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.