Finding the Fourth Proportional to 622,852,763.05, 859,131,809.91 and 399,480,637.36
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Solution
The fourth proportional to 622,852,763.05, 859,131,809.91 and 399,480,637.36 is: 551,023,521.70
Step by Step Solution
- Step 1: Write the proportion equation
622,852,763.05 : 859,131,809.91 = 399,480,637.36 : x - Step 2: Convert to fraction form
622,852,763.05/859,131,809.91 = 399,480,637.36/x - Step 3: Cross multiply
622,852,763.05x = 859,131,809.91 × 399,480,637.36 - Step 4: Simplify right side
622,852,763.05x = 343,206,522,998,564,480 - Step 5: Solve for x
x = 343,206,522,998,564,480/622,852,763.05 - Step 6: Final answer
x = 551,023,521.70
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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.