Finding the Fourth Proportional to 100,947,417.78, 139,307,817.29 and 63,794,208.99
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Solution
The fourth proportional to 100,947,417.78, 139,307,817.29 and 63,794,208.99 is: 88,036,249.02
Step by Step Solution
- Step 1: Write the proportion equation
100,947,417.78 : 139,307,817.29 = 63,794,208.99 : x - Step 2: Convert to fraction form
100,947,417.78/139,307,817.29 = 63,794,208.99/x - Step 3: Cross multiply
100,947,417.78x = 139,307,817.29 × 63,794,208.99 - Step 4: Simplify right side
100,947,417.78x = 8,887,032,009,820,024 - Step 5: Solve for x
x = 8,887,032,009,820,024/100,947,417.78 - Step 6: Final answer
x = 88,036,249.02
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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.