Finding the Fourth Proportional to 73,781,348,948.40, 101,818,309,590.99 and 39,948,666,975.84
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Solution
The fourth proportional to 73,781,348,948.40, 101,818,309,590.99 and 39,948,666,975.84 is: 55,129,186,438.95
Step by Step Solution
- Step 1: Write the proportion equation
73,781,348,948.40 : 101,818,309,590.99 = 39,948,666,975.84 : x - Step 2: Convert to fraction form
73,781,348,948.40/101,818,309,590.99 = 39,948,666,975.84/x - Step 3: Cross multiply
73,781,348,948.40x = 101,818,309,590.99 × 39,948,666,975.84 - Step 4: Simplify right side
73,781,348,948.40x = 4,067,505,741,893,435,129,856 - Step 5: Solve for x
x = 4,067,505,741,893,435,129,856/73,781,348,948.40 - Step 6: Final answer
x = 55,129,186,438.95
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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.