Finding the Fourth Proportional to 7,561,043,998.80, 11,341,565,998.20 and 6,541,828,126.80
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Solution
The fourth proportional to 7,561,043,998.80, 11,341,565,998.20 and 6,541,828,126.80 is: 9,812,742,190.20
Step by Step Solution
- Step 1: Write the proportion equation
7,561,043,998.80 : 11,341,565,998.20 = 6,541,828,126.80 : x - Step 2: Convert to fraction form
7,561,043,998.80/11,341,565,998.20 = 6,541,828,126.80/x - Step 3: Cross multiply
7,561,043,998.80x = 11,341,565,998.20 × 6,541,828,126.80 - Step 4: Simplify right side
7,561,043,998.80x = 74,194,575,448,983,289,856 - Step 5: Solve for x
x = 74,194,575,448,983,289,856/7,561,043,998.80 - Step 6: Final answer
x = 9,812,742,190.20
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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.