Finding the Fourth Proportional to 657,948,129.41, 986,914,585.48 and 159,961,464.90
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Solution
The fourth proportional to 657,948,129.41, 986,914,585.48 and 159,961,464.90 is: 239,940,347.52
Step by Step Solution
- Step 1: Write the proportion equation
657,948,129.41 : 986,914,585.48 = 159,961,464.90 : x - Step 2: Convert to fraction form
657,948,129.41/986,914,585.48 = 159,961,464.90/x - Step 3: Cross multiply
657,948,129.41x = 986,914,585.48 × 159,961,464.90 - Step 4: Simplify right side
657,948,129.41x = 157,868,302,818,822,688 - Step 5: Solve for x
x = 157,868,302,818,822,688/657,948,129.41 - Step 6: Final answer
x = 239,940,347.52
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Double scale
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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.