Finding the Fourth Proportional to 10,407,800.70, 15,611,701.05 and 6,623,999.10
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Solution
The fourth proportional to 10,407,800.70, 15,611,701.05 and 6,623,999.10 is: 9,935,998.65
Step by Step Solution
- Step 1: Write the proportion equation
10,407,800.70 : 15,611,701.05 = 6,623,999.10 : x - Step 2: Convert to fraction form
10,407,800.70/15,611,701.05 = 6,623,999.10/x - Step 3: Cross multiply
10,407,800.70x = 15,611,701.05 × 6,623,999.10 - Step 4: Simplify right side
10,407,800.70x = 103,411,893,704,669.05 - Step 5: Solve for x
x = 103,411,893,704,669.05/10,407,800.70 - Step 6: Final answer
x = 9,935,998.65
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Double scale
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Similar ratio
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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.