Finding the Fourth Proportional to 318,877,231.60, 478,315,847.40 and 241,782,857.20
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Solution
The fourth proportional to 318,877,231.60, 478,315,847.40 and 241,782,857.20 is: 362,674,285.80
Step by Step Solution
- Step 1: Write the proportion equation
318,877,231.60 : 478,315,847.40 = 241,782,857.20 : x - Step 2: Convert to fraction form
318,877,231.60/478,315,847.40 = 241,782,857.20/x - Step 3: Cross multiply
318,877,231.60x = 478,315,847.40 × 241,782,857.20 - Step 4: Simplify right side
318,877,231.60x = 115,648,572,228,411,184 - Step 5: Solve for x
x = 115,648,572,228,411,184/318,877,231.60 - Step 6: Final answer
x = 362,674,285.80
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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.