Finding the Fourth Proportional to 1,026,435,365.80, 1,539,653,048.70 and 618,288,677.80
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Solution
The fourth proportional to 1,026,435,365.80, 1,539,653,048.70 and 618,288,677.80 is: 927,433,016.70
Step by Step Solution
- Step 1: Write the proportion equation
1,026,435,365.80 : 1,539,653,048.70 = 618,288,677.80 : x - Step 2: Convert to fraction form
1,026,435,365.80/1,539,653,048.70 = 618,288,677.80/x - Step 3: Cross multiply
1,026,435,365.80x = 1,539,653,048.70 × 618,288,677.80 - Step 4: Simplify right side
1,026,435,365.80x = 951,950,047,751,462,016 - Step 5: Solve for x
x = 951,950,047,751,462,016/1,026,435,365.80 - Step 6: Final answer
x = 927,433,016.70
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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.