Finding the Fourth Proportional to 5,219,259,812.80, 7,828,889,719.20 and 2,897,358,654.40
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Solution
The fourth proportional to 5,219,259,812.80, 7,828,889,719.20 and 2,897,358,654.40 is: 4,346,037,981.60
Step by Step Solution
- Step 1: Write the proportion equation
5,219,259,812.80 : 7,828,889,719.20 = 2,897,358,654.40 : x - Step 2: Convert to fraction form
5,219,259,812.80/7,828,889,719.20 = 2,897,358,654.40/x - Step 3: Cross multiply
5,219,259,812.80x = 7,828,889,719.20 × 2,897,358,654.40 - Step 4: Simplify right side
5,219,259,812.80x = 22,683,101,382,267,305,984 - Step 5: Solve for x
x = 22,683,101,382,267,305,984/5,219,259,812.80 - Step 6: Final answer
x = 4,346,037,981.60
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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.