Finding the Fourth Proportional to 811,986,681.26, 1,120,349,569.94 and 459,562,671.97
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Solution
The fourth proportional to 811,986,681.26, 1,120,349,569.94 and 459,562,671.97 is: 634,087,792.05
Step by Step Solution
- Step 1: Write the proportion equation
811,986,681.26 : 1,120,349,569.94 = 459,562,671.97 : x - Step 2: Convert to fraction form
811,986,681.26/1,120,349,569.94 = 459,562,671.97/x - Step 3: Cross multiply
811,986,681.26x = 1,120,349,569.94 × 459,562,671.97 - Step 4: Simplify right side
811,986,681.26x = 514,870,841,896,968,064 - Step 5: Solve for x
x = 514,870,841,896,968,064/811,986,681.26 - Step 6: Final answer
x = 634,087,792.05
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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.