Finding the Fourth Proportional to 106,670,844.12, 147,205,769.76 and 57,778,272.12
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Solution
The fourth proportional to 106,670,844.12, 147,205,769.76 and 57,778,272.12 is: 79,734,018.17
Step by Step Solution
- Step 1: Write the proportion equation
106,670,844.12 : 147,205,769.76 = 57,778,272.12 : x - Step 2: Convert to fraction form
106,670,844.12/147,205,769.76 = 57,778,272.12/x - Step 3: Cross multiply
106,670,844.12x = 147,205,769.76 × 57,778,272.12 - Step 4: Simplify right side
106,670,844.12x = 8,505,295,022,827,346 - Step 5: Solve for x
x = 8,505,295,022,827,346/106,670,844.12 - Step 6: Final answer
x = 79,734,018.17
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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.