Finding the Fourth Proportional to 12,901,776.05, 19,329,958.85 and 12,133,746.98
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Solution
The fourth proportional to 12,901,776.05, 19,329,958.85 and 12,133,746.98 is: 18,179,266.87
Step by Step Solution
- Step 1: Write the proportion equation
12,901,776.05 : 19,329,958.85 = 12,133,746.98 : x - Step 2: Convert to fraction form
12,901,776.05/19,329,958.85 = 12,133,746.98/x - Step 3: Cross multiply
12,901,776.05x = 19,329,958.85 × 12,133,746.98 - Step 4: Simplify right side
12,901,776.05x = 234,544,829,935,866.16 - Step 5: Solve for x
x = 234,544,829,935,866.16/12,901,776.05 - Step 6: Final answer
x = 18,179,266.87
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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.