Finding the Fourth Proportional to 486,464,425.11, 730,860,739.95 and 311,929,412.67
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Solution
The fourth proportional to 486,464,425.11, 730,860,739.95 and 311,929,412.67 is: 468,640,561.55
Step by Step Solution
- Step 1: Write the proportion equation
486,464,425.11 : 730,860,739.95 = 311,929,412.67 : x - Step 2: Convert to fraction form
486,464,425.11/730,860,739.95 = 311,929,412.67/x - Step 3: Cross multiply
486,464,425.11x = 730,860,739.95 × 311,929,412.67 - Step 4: Simplify right side
486,464,425.11x = 227,976,961,356,165,120 - Step 5: Solve for x
x = 227,976,961,356,165,120/486,464,425.11 - Step 6: Final answer
x = 468,640,561.55
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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.