Finding the Fourth Proportional to 3,497,472,463.70, 5,246,208,695.55 and 912,543,439.70
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Solution
The fourth proportional to 3,497,472,463.70, 5,246,208,695.55 and 912,543,439.70 is: 1,368,815,159.55
Step by Step Solution
- Step 1: Write the proportion equation
3,497,472,463.70 : 5,246,208,695.55 = 912,543,439.70 : x - Step 2: Convert to fraction form
3,497,472,463.70/5,246,208,695.55 = 912,543,439.70/x - Step 3: Cross multiply
3,497,472,463.70x = 5,246,208,695.55 × 912,543,439.70 - Step 4: Simplify right side
3,497,472,463.70x = 4,787,393,328,421,248,000 - Step 5: Solve for x
x = 4,787,393,328,421,248,000/3,497,472,463.70 - Step 6: Final answer
x = 1,368,815,159.55
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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.