Finding the Fourth Proportional to 5,385,798,220.80, 8,078,697,331.20 and 3,319,555,612.80
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Solution
The fourth proportional to 5,385,798,220.80, 8,078,697,331.20 and 3,319,555,612.80 is: 4,979,333,419.20
Step by Step Solution
- Step 1: Write the proportion equation
5,385,798,220.80 : 8,078,697,331.20 = 3,319,555,612.80 : x - Step 2: Convert to fraction form
5,385,798,220.80/8,078,697,331.20 = 3,319,555,612.80/x - Step 3: Cross multiply
5,385,798,220.80x = 8,078,697,331.20 × 3,319,555,612.80 - Step 4: Simplify right side
5,385,798,220.80x = 26,817,685,069,897,342,976 - Step 5: Solve for x
x = 26,817,685,069,897,342,976/5,385,798,220.80 - Step 6: Final answer
x = 4,979,333,419.20
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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.