Finding the Fourth Proportional to 77,057,845.12, 106,344,603.84 and 42,719,029.12
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Solution
The fourth proportional to 77,057,845.12, 106,344,603.84 and 42,719,029.12 is: 58,954,908.76
Step by Step Solution
- Step 1: Write the proportion equation
77,057,845.12 : 106,344,603.84 = 42,719,029.12 : x - Step 2: Convert to fraction form
77,057,845.12/106,344,603.84 = 42,719,029.12/x - Step 3: Cross multiply
77,057,845.12x = 106,344,603.84 × 42,719,029.12 - Step 4: Simplify right side
77,057,845.12x = 4,542,938,228,195,824 - Step 5: Solve for x
x = 4,542,938,228,195,824/77,057,845.12 - Step 6: Final answer
x = 58,954,908.76
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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.