Finding the Fourth Proportional to 77,532,807.80, 106,995,982.38 and 42,726,747.08
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Solution
The fourth proportional to 77,532,807.80, 106,995,982.38 and 42,726,747.08 is: 58,963,300.92
Step by Step Solution
- Step 1: Write the proportion equation
77,532,807.80 : 106,995,982.38 = 42,726,747.08 : x - Step 2: Convert to fraction form
77,532,807.80/106,995,982.38 = 42,726,747.08/x - Step 3: Cross multiply
77,532,807.80x = 106,995,982.38 × 42,726,747.08 - Step 4: Simplify right side
77,532,807.80x = 4,571,590,277,726,396 - Step 5: Solve for x
x = 4,571,590,277,726,396/77,532,807.80 - Step 6: Final answer
x = 58,963,300.92
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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.