Finding the Fourth Proportional to 628,766,574.18, 867,701,287.11 and 360,821,072.10
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Solution
The fourth proportional to 628,766,574.18, 867,701,287.11 and 360,821,072.10 is: 497,935,039.07
Step by Step Solution
- Step 1: Write the proportion equation
628,766,574.18 : 867,701,287.11 = 360,821,072.10 : x - Step 2: Convert to fraction form
628,766,574.18/867,701,287.11 = 360,821,072.10/x - Step 3: Cross multiply
628,766,574.18x = 867,701,287.11 × 360,821,072.10 - Step 4: Simplify right side
628,766,574.18x = 313,084,908,677,580,160 - Step 5: Solve for x
x = 313,084,908,677,580,160/628,766,574.18 - Step 6: Final answer
x = 497,935,039.07
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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.