Finding the Fourth Proportional to 1,368,484,808.18, 1,888,546,221.05 and 773,858,253.20
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Solution
The fourth proportional to 1,368,484,808.18, 1,888,546,221.05 and 773,858,253.20 is: 1,067,945,417.42
Step by Step Solution
- Step 1: Write the proportion equation
1,368,484,808.18 : 1,888,546,221.05 = 773,858,253.20 : x - Step 2: Convert to fraction form
1,368,484,808.18/1,888,546,221.05 = 773,858,253.20/x - Step 3: Cross multiply
1,368,484,808.18x = 1,888,546,221.05 × 773,858,253.20 - Step 4: Simplify right side
1,368,484,808.18x = 1,461,467,079,695,902,208 - Step 5: Solve for x
x = 1,461,467,079,695,902,208/1,368,484,808.18 - Step 6: Final answer
x = 1,067,945,417.42
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.