Finding the Fourth Proportional to 70,916,943.80, 106,375,415.70 and 27,771,807.80
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Solution
The fourth proportional to 70,916,943.80, 106,375,415.70 and 27,771,807.80 is: 41,657,711.70
Step by Step Solution
- Step 1: Write the proportion equation
70,916,943.80 : 106,375,415.70 = 27,771,807.80 : x - Step 2: Convert to fraction form
70,916,943.80/106,375,415.70 = 27,771,807.80/x - Step 3: Cross multiply
70,916,943.80x = 106,375,415.70 × 27,771,807.80 - Step 4: Simplify right side
70,916,943.80x = 2,954,237,599,465,502.50 - Step 5: Solve for x
x = 2,954,237,599,465,502.50/70,916,943.80 - Step 6: Final answer
x = 41,657,711.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.