Finding the Fourth Proportional to 560,538,686.12, 773,528,393.82 and 309,637,678.12
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Solution
The fourth proportional to 560,538,686.12, 773,528,393.82 and 309,637,678.12 is: 427,291,713.76
Step by Step Solution
- Step 1: Write the proportion equation
560,538,686.12 : 773,528,393.82 = 309,637,678.12 : x - Step 2: Convert to fraction form
560,538,686.12/773,528,393.82 = 309,637,678.12/x - Step 3: Cross multiply
560,538,686.12x = 773,528,393.82 × 309,637,678.12 - Step 4: Simplify right side
560,538,686.12x = 239,513,535,822,317,792 - Step 5: Solve for x
x = 239,513,535,822,317,792/560,538,686.12 - Step 6: Final answer
x = 427,291,713.76
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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.