Finding the Fourth Proportional to 408,475,307.60, 563,618,830.11 and 243,478,229.84
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Solution
The fourth proportional to 408,475,307.60, 563,618,830.11 and 243,478,229.84 is: 335,954,003.84
Step by Step Solution
- Step 1: Write the proportion equation
408,475,307.60 : 563,618,830.11 = 243,478,229.84 : x - Step 2: Convert to fraction form
408,475,307.60/563,618,830.11 = 243,478,229.84/x - Step 3: Cross multiply
408,475,307.60x = 563,618,830.11 × 243,478,229.84 - Step 4: Simplify right side
408,475,307.60x = 137,228,915,059,425,296 - Step 5: Solve for x
x = 137,228,915,059,425,296/408,475,307.60 - Step 6: Final answer
x = 335,954,003.84
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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.