Finding the Fourth Proportional to 99,689,943.80, 149,555,133.30 and 56,579,799.80
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Solution
The fourth proportional to 99,689,943.80, 149,555,133.30 and 56,579,799.80 is: 84,881,174.36
Step by Step Solution
- Step 1: Write the proportion equation
99,689,943.80 : 149,555,133.30 = 56,579,799.80 : x - Step 2: Convert to fraction form
99,689,943.80/149,555,133.30 = 56,579,799.80/x - Step 3: Cross multiply
99,689,943.80x = 149,555,133.30 × 56,579,799.80 - Step 4: Simplify right side
99,689,943.80x = 8,461,799,501,176,314 - Step 5: Solve for x
x = 8,461,799,501,176,314/99,689,943.80 - Step 6: Final answer
x = 84,881,174.36
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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.