Finding the Fourth Proportional to 649,981,245.95, 896,975,857.99 and 352,623,488.12
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Solution
The fourth proportional to 649,981,245.95, 896,975,857.99 and 352,623,488.12 is: 486,621,356.81
Step by Step Solution
- Step 1: Write the proportion equation
649,981,245.95 : 896,975,857.99 = 352,623,488.12 : x - Step 2: Convert to fraction form
649,981,245.95/896,975,857.99 = 352,623,488.12/x - Step 3: Cross multiply
649,981,245.95x = 896,975,857.99 × 352,623,488.12 - Step 4: Simplify right side
649,981,245.95x = 316,294,755,803,863,552 - Step 5: Solve for x
x = 316,294,755,803,863,552/649,981,245.95 - Step 6: Final answer
x = 486,621,356.81
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1.5x scale
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.