Finding the Fourth Proportional to 140,290,057.68, 193,607,027.34 and 77,564,994.99
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Solution
The fourth proportional to 140,290,057.68, 193,607,027.34 and 77,564,994.99 is: 107,043,423.85
Step by Step Solution
- Step 1: Write the proportion equation
140,290,057.68 : 193,607,027.34 = 77,564,994.99 : x - Step 2: Convert to fraction form
140,290,057.68/193,607,027.34 = 77,564,994.99/x - Step 3: Cross multiply
140,290,057.68x = 193,607,027.34 × 77,564,994.99 - Step 4: Simplify right side
140,290,057.68x = 15,017,128,105,655,892 - Step 5: Solve for x
x = 15,017,128,105,655,892/140,290,057.68 - Step 6: Final answer
x = 107,043,423.85
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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.