Finding the Fourth Proportional to 148,940,327.84, 205,539,543.95 and 81,966,996.99
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Solution
The fourth proportional to 148,940,327.84, 205,539,543.95 and 81,966,996.99 is: 113,115,496.82
Step by Step Solution
- Step 1: Write the proportion equation
148,940,327.84 : 205,539,543.95 = 81,966,996.99 : x - Step 2: Convert to fraction form
148,940,327.84/205,539,543.95 = 81,966,996.99/x - Step 3: Cross multiply
148,940,327.84x = 205,539,543.95 × 81,966,996.99 - Step 4: Simplify right side
148,940,327.84x = 16,847,459,179,865,786 - Step 5: Solve for x
x = 16,847,459,179,865,786/148,940,327.84 - Step 6: Final answer
x = 113,115,496.82
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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.