Finding the Fourth Proportional to 728,275,521.45, 1,092,413,282.18 and 644,095,267.05
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Solution
The fourth proportional to 728,275,521.45, 1,092,413,282.18 and 644,095,267.05 is: 966,142,900.58
Step by Step Solution
- Step 1: Write the proportion equation
728,275,521.45 : 1,092,413,282.18 = 644,095,267.05 : x - Step 2: Convert to fraction form
728,275,521.45/1,092,413,282.18 = 644,095,267.05/x - Step 3: Cross multiply
728,275,521.45x = 1,092,413,282.18 × 644,095,267.05 - Step 4: Simplify right side
728,275,521.45x = 703,618,224,711,473,536 - Step 5: Solve for x
x = 703,618,224,711,473,536/728,275,521.45 - Step 6: Final answer
x = 966,142,900.58
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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.