Finding the Fourth Proportional to 7,081,385,553.80, 10,622,078,330.70 and 6,877,312,209.80
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Solution
The fourth proportional to 7,081,385,553.80, 10,622,078,330.70 and 6,877,312,209.80 is: 10,315,968,314.70
Step by Step Solution
- Step 1: Write the proportion equation
7,081,385,553.80 : 10,622,078,330.70 = 6,877,312,209.80 : x - Step 2: Convert to fraction form
7,081,385,553.80/10,622,078,330.70 = 6,877,312,209.80/x - Step 3: Cross multiply
7,081,385,553.80x = 10,622,078,330.70 × 6,877,312,209.80 - Step 4: Simplify right side
7,081,385,553.80x = 73,051,348,997,175,115,776 - Step 5: Solve for x
x = 73,051,348,997,175,115,776/7,081,385,553.80 - Step 6: Final answer
x = 10,315,968,314.70
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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.