Finding the Fourth Proportional to 64,995,493.81, 89,641,482 and 57,138,206.12
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Solution
The fourth proportional to 64,995,493.81, 89,641,482 and 57,138,206.12 is: 78,804,747.46
Step by Step Solution
- Step 1: Write the proportion equation
64,995,493.81 : 89,641,482 = 57,138,206.12 : x - Step 2: Convert to fraction form
64,995,493.81/89,641,482 = 57,138,206.12/x - Step 3: Cross multiply
64,995,493.81x = 89,641,482 × 57,138,206.12 - Step 4: Simplify right side
64,995,493.81x = 5,121,953,475,418,270 - Step 5: Solve for x
x = 5,121,953,475,418,270/64,995,493.81 - Step 6: Final answer
x = 78,804,747.46
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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.