Finding the Fourth Proportional to 310,837,366.91, 429,149,154.18 and 197,870,598.70
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Solution
The fourth proportional to 310,837,366.91, 429,149,154.18 and 197,870,598.70 is: 273,184,658.95
Step by Step Solution
- Step 1: Write the proportion equation
310,837,366.91 : 429,149,154.18 = 197,870,598.70 : x - Step 2: Convert to fraction form
310,837,366.91/429,149,154.18 = 197,870,598.70/x - Step 3: Cross multiply
310,837,366.91x = 429,149,154.18 × 197,870,598.70 - Step 4: Simplify right side
310,837,366.91x = 84,916,000,069,195,200 - Step 5: Solve for x
x = 84,916,000,069,195,200/310,837,366.91 - Step 6: Final answer
x = 273,184,658.95
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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.