Finding the Fourth Proportional to 4,663,876,670.40, 6,995,889,655.20 and 1,217,304,638.40
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Solution
The fourth proportional to 4,663,876,670.40, 6,995,889,655.20 and 1,217,304,638.40 is: 1,825,976,441.67
Step by Step Solution
- Step 1: Write the proportion equation
4,663,876,670.40 : 6,995,889,655.20 = 1,217,304,638.40 : x - Step 2: Convert to fraction form
4,663,876,670.40/6,995,889,655.20 = 1,217,304,638.40/x - Step 3: Cross multiply
4,663,876,670.40x = 6,995,889,655.20 × 1,217,304,638.40 - Step 4: Simplify right side
4,663,876,670.40x = 8,516,128,927,009,537,024 - Step 5: Solve for x
x = 8,516,128,927,009,537,024/4,663,876,670.40 - Step 6: Final answer
x = 1,825,976,441.67
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.