Finding the Fourth Proportional to 864,812,378.92, 1,193,441,726.34 and 468,338,446.12
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Solution
The fourth proportional to 864,812,378.92, 1,193,441,726.34 and 468,338,446.12 is: 646,307,404.09
Step by Step Solution
- Step 1: Write the proportion equation
864,812,378.92 : 1,193,441,726.34 = 468,338,446.12 : x - Step 2: Convert to fraction form
864,812,378.92/1,193,441,726.34 = 468,338,446.12/x - Step 3: Cross multiply
864,812,378.92x = 1,193,441,726.34 × 468,338,446.12 - Step 4: Simplify right side
864,812,378.92x = 558,934,643,648,845,824 - Step 5: Solve for x
x = 558,934,643,648,845,824/864,812,378.92 - Step 6: Final answer
x = 646,307,404.09
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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.