Finding the Fourth Proportional to 881,899,952.16, 1,217,012,275.99 and 485,414,464.80
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Solution
The fourth proportional to 881,899,952.16, 1,217,012,275.99 and 485,414,464.80 is: 669,866,645.48
Step by Step Solution
- Step 1: Write the proportion equation
881,899,952.16 : 1,217,012,275.99 = 485,414,464.80 : x - Step 2: Convert to fraction form
881,899,952.16/1,217,012,275.99 = 485,414,464.80/x - Step 3: Cross multiply
881,899,952.16x = 1,217,012,275.99 × 485,414,464.80 - Step 4: Simplify right side
881,899,952.16x = 590,755,362,604,715,776 - Step 5: Solve for x
x = 590,755,362,604,715,776/881,899,952.16 - Step 6: Final answer
x = 669,866,645.48
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Double scale
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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.