Finding the Fourth Proportional to 920,700,204.71, 1,270,566,792.25 and 497,313,863.98
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Solution
The fourth proportional to 920,700,204.71, 1,270,566,792.25 and 497,313,863.98 is: 686,293,407.64
Step by Step Solution
- Step 1: Write the proportion equation
920,700,204.71 : 1,270,566,792.25 = 497,313,863.98 : x - Step 2: Convert to fraction form
920,700,204.71/1,270,566,792.25 = 497,313,863.98/x - Step 3: Cross multiply
920,700,204.71x = 1,270,566,792.25 × 497,313,863.98 - Step 4: Simplify right side
920,700,204.71x = 631,870,480,901,242,368 - Step 5: Solve for x
x = 631,870,480,901,242,368/920,700,204.71 - Step 6: Final answer
x = 686,293,407.64
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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.