Finding the Fourth Proportional to 505,877,526.12, 697,841,695.26 and 307,699,634.28
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Solution
The fourth proportional to 505,877,526.12, 697,841,695.26 and 307,699,634.28 is: 424,461,699.38
Step by Step Solution
- Step 1: Write the proportion equation
505,877,526.12 : 697,841,695.26 = 307,699,634.28 : x - Step 2: Convert to fraction form
505,877,526.12/697,841,695.26 = 307,699,634.28/x - Step 3: Cross multiply
505,877,526.12x = 697,841,695.26 × 307,699,634.28 - Step 4: Simplify right side
505,877,526.12x = 214,725,634,416,837,184 - Step 5: Solve for x
x = 214,725,634,416,837,184/505,877,526.12 - Step 6: Final answer
x = 424,461,699.38
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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.