Finding the Fourth Proportional to 161,660,393.60, 242,490,590.40 and 97,163,139.20
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Solution
The fourth proportional to 161,660,393.60, 242,490,590.40 and 97,163,139.20 is: 145,744,708.80
Step by Step Solution
- Step 1: Write the proportion equation
161,660,393.60 : 242,490,590.40 = 97,163,139.20 : x - Step 2: Convert to fraction form
161,660,393.60/242,490,590.40 = 97,163,139.20/x - Step 3: Cross multiply
161,660,393.60x = 242,490,590.40 × 97,163,139.20 - Step 4: Simplify right side
161,660,393.60x = 23,561,146,989,725,384 - Step 5: Solve for x
x = 23,561,146,989,725,384/161,660,393.60 - Step 6: Final answer
x = 145,744,708.80
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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.