Finding the Fourth Proportional to 198,331,353.70, 297,497,030.55 and 117,709,785.70
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Solution
The fourth proportional to 198,331,353.70, 297,497,030.55 and 117,709,785.70 is: 176,564,678.55
Step by Step Solution
- Step 1: Write the proportion equation
198,331,353.70 : 297,497,030.55 = 117,709,785.70 : x - Step 2: Convert to fraction form
198,331,353.70/297,497,030.55 = 117,709,785.70/x - Step 3: Cross multiply
198,331,353.70x = 297,497,030.55 × 117,709,785.70 - Step 4: Simplify right side
198,331,353.70x = 35,018,311,712,426,856 - Step 5: Solve for x
x = 35,018,311,712,426,856/198,331,353.70 - Step 6: Final answer
x = 176,564,678.55
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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.