Finding the Fourth Proportional to 812,274,566.74, 1,121,990,385.14 and 671,713,551.96
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Solution
The fourth proportional to 812,274,566.74, 1,121,990,385.14 and 671,713,551.96 is: 927,834,229.62
Step by Step Solution
- Step 1: Write the proportion equation
812,274,566.74 : 1,121,990,385.14 = 671,713,551.96 : x - Step 2: Convert to fraction form
812,274,566.74/1,121,990,385.14 = 671,713,551.96/x - Step 3: Cross multiply
812,274,566.74x = 1,121,990,385.14 × 671,713,551.96 - Step 4: Simplify right side
812,274,566.74x = 753,656,146,867,357,952 - Step 5: Solve for x
x = 753,656,146,867,357,952/812,274,566.74 - Step 6: Final answer
x = 927,834,229.62
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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.