Finding the Fourth Proportional to 679,666,596.15, 937,889,198.56 and 382,251,377.92
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Solution
The fourth proportional to 679,666,596.15, 937,889,198.56 and 382,251,377.92 is: 527,478,385.02
Step by Step Solution
- Step 1: Write the proportion equation
679,666,596.15 : 937,889,198.56 = 382,251,377.92 : x - Step 2: Convert to fraction form
679,666,596.15/937,889,198.56 = 382,251,377.92/x - Step 3: Cross multiply
679,666,596.15x = 937,889,198.56 × 382,251,377.92 - Step 4: Simplify right side
679,666,596.15x = 358,509,438,485,844,480 - Step 5: Solve for x
x = 358,509,438,485,844,480/679,666,596.15 - Step 6: Final answer
x = 527,478,385.02
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1.5x scale
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.