Finding the Fourth Proportional to 898,689,969.10, 1,348,034,953.65 and 438,391,204.30
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Solution
The fourth proportional to 898,689,969.10, 1,348,034,953.65 and 438,391,204.30 is: 657,586,806.45
Step by Step Solution
- Step 1: Write the proportion equation
898,689,969.10 : 1,348,034,953.65 = 438,391,204.30 : x - Step 2: Convert to fraction form
898,689,969.10/1,348,034,953.65 = 438,391,204.30/x - Step 3: Cross multiply
898,689,969.10x = 1,348,034,953.65 × 438,391,204.30 - Step 4: Simplify right side
898,689,969.10x = 590,966,666,769,118,208 - Step 5: Solve for x
x = 590,966,666,769,118,208/898,689,969.10 - Step 6: Final answer
x = 657,586,806.45
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.