Finding the Fourth Proportional to 870,733,744.65, 1,201,567,217.99 and 540,701,849.61
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Solution
The fourth proportional to 870,733,744.65, 1,201,567,217.99 and 540,701,849.61 is: 746,140,391.58
Step by Step Solution
- Step 1: Write the proportion equation
870,733,744.65 : 1,201,567,217.99 = 540,701,849.61 : x - Step 2: Convert to fraction form
870,733,744.65/1,201,567,217.99 = 540,701,849.61/x - Step 3: Cross multiply
870,733,744.65x = 1,201,567,217.99 × 540,701,849.61 - Step 4: Simplify right side
870,733,744.65x = 649,689,617,195,231,488 - Step 5: Solve for x
x = 649,689,617,195,231,488/870,733,744.65 - Step 6: Final answer
x = 746,140,391.58
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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.