Finding the Fourth Proportional to 39,810,358,908.79, 54,938,293,193.14 and 21,499,414,822.79
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Solution
The fourth proportional to 39,810,358,908.79, 54,938,293,193.14 and 21,499,414,822.79 is: 29,669,191,320.82
Step by Step Solution
- Step 1: Write the proportion equation
39,810,358,908.79 : 54,938,293,193.14 = 21,499,414,822.79 : x - Step 2: Convert to fraction form
39,810,358,908.79/54,938,293,193.14 = 21,499,414,822.79/x - Step 3: Cross multiply
39,810,358,908.79x = 54,938,293,193.14 × 21,499,414,822.79 - Step 4: Simplify right side
39,810,358,908.79x = 1,181,141,155,015,355,531,264 - Step 5: Solve for x
x = 1,181,141,155,015,355,531,264/39,810,358,908.79 - Step 6: Final answer
x = 29,669,191,320.82
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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.