Finding the Fourth Proportional to 5,038,884,311.80, 7,558,326,467.70 and 2,130,839,159.80
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Solution
The fourth proportional to 5,038,884,311.80, 7,558,326,467.70 and 2,130,839,159.80 is: 3,196,258,739.70
Step by Step Solution
- Step 1: Write the proportion equation
5,038,884,311.80 : 7,558,326,467.70 = 2,130,839,159.80 : x - Step 2: Convert to fraction form
5,038,884,311.80/7,558,326,467.70 = 2,130,839,159.80/x - Step 3: Cross multiply
5,038,884,311.80x = 7,558,326,467.70 × 2,130,839,159.80 - Step 4: Simplify right side
5,038,884,311.80x = 16,105,578,019,927,969,792 - Step 5: Solve for x
x = 16,105,578,019,927,969,792/5,038,884,311.80 - Step 6: Final answer
x = 3,196,258,739.70
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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.