Finding the Fourth Proportional to 5,979,112,908.90, 8,968,669,363.35 and 5,679,805,337.70
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Solution
The fourth proportional to 5,979,112,908.90, 8,968,669,363.35 and 5,679,805,337.70 is: 8,519,708,006.55
Step by Step Solution
- Step 1: Write the proportion equation
5,979,112,908.90 : 8,968,669,363.35 = 5,679,805,337.70 : x - Step 2: Convert to fraction form
5,979,112,908.90/8,968,669,363.35 = 5,679,805,337.70/x - Step 3: Cross multiply
5,979,112,908.90x = 8,968,669,363.35 × 5,679,805,337.70 - Step 4: Simplify right side
5,979,112,908.90x = 50,940,296,122,021,789,696 - Step 5: Solve for x
x = 50,940,296,122,021,789,696/5,979,112,908.90 - Step 6: Final answer
x = 8,519,708,006.55
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Double scale
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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.