Finding the Fourth Proportional to 870,816,547.68, 1,201,726,900.80 and 479,675,971.68
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Solution
The fourth proportional to 870,816,547.68, 1,201,726,900.80 and 479,675,971.68 is: 661,952,876.72
Step by Step Solution
- Step 1: Write the proportion equation
870,816,547.68 : 1,201,726,900.80 = 479,675,971.68 : x - Step 2: Convert to fraction form
870,816,547.68/1,201,726,900.80 = 479,675,971.68/x - Step 3: Cross multiply
870,816,547.68x = 1,201,726,900.80 × 479,675,971.68 - Step 4: Simplify right side
870,816,547.68x = 576,439,518,835,234,944 - Step 5: Solve for x
x = 576,439,518,835,234,944/870,816,547.68 - Step 6: Final answer
x = 661,952,876.72
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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.