Finding the Fourth Proportional to 2,173,878,051.20, 3,260,817,076.80 and 538,102,653.20
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Solution
The fourth proportional to 2,173,878,051.20, 3,260,817,076.80 and 538,102,653.20 is: 807,153,979.80
Step by Step Solution
- Step 1: Write the proportion equation
2,173,878,051.20 : 3,260,817,076.80 = 538,102,653.20 : x - Step 2: Convert to fraction form
2,173,878,051.20/3,260,817,076.80 = 538,102,653.20/x - Step 3: Cross multiply
2,173,878,051.20x = 3,260,817,076.80 × 538,102,653.20 - Step 4: Simplify right side
2,173,878,051.20x = 1,754,654,320,625,948,416 - Step 5: Solve for x
x = 1,754,654,320,625,948,416/2,173,878,051.20 - Step 6: Final answer
x = 807,153,979.80
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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.