Finding the Fourth Proportional to 813,564,048.70, 1,220,346,073.05 and 268,276,714.30
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Solution
The fourth proportional to 813,564,048.70, 1,220,346,073.05 and 268,276,714.30 is: 402,415,071.45
Step by Step Solution
- Step 1: Write the proportion equation
813,564,048.70 : 1,220,346,073.05 = 268,276,714.30 : x - Step 2: Convert to fraction form
813,564,048.70/1,220,346,073.05 = 268,276,714.30/x - Step 3: Cross multiply
813,564,048.70x = 1,220,346,073.05 × 268,276,714.30 - Step 4: Simplify right side
813,564,048.70x = 327,390,434,786,761,792 - Step 5: Solve for x
x = 327,390,434,786,761,792/813,564,048.70 - Step 6: Final answer
x = 402,415,071.45
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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.