Finding the Fourth Proportional to 819,634,428.74, 1,130,914,272.92 and 502,161,752.18
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Solution
The fourth proportional to 819,634,428.74, 1,130,914,272.92 and 502,161,752.18 is: 692,872,179.28
Step by Step Solution
- Step 1: Write the proportion equation
819,634,428.74 : 1,130,914,272.92 = 502,161,752.18 : x - Step 2: Convert to fraction form
819,634,428.74/1,130,914,272.92 = 502,161,752.18/x - Step 3: Cross multiply
819,634,428.74x = 1,130,914,272.92 × 502,161,752.18 - Step 4: Simplify right side
819,634,428.74x = 567,901,892,854,877,952 - Step 5: Solve for x
x = 567,901,892,854,877,952/819,634,428.74 - Step 6: Final answer
x = 692,872,179.28
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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.