Finding the Fourth Proportional to 868,705,430.29, 1,198,804,977 and 472,204,828.95
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Solution
The fourth proportional to 868,705,430.29, 1,198,804,977 and 472,204,828.95 is: 651,638,034.45
Step by Step Solution
- Step 1: Write the proportion equation
868,705,430.29 : 1,198,804,977 = 472,204,828.95 : x - Step 2: Convert to fraction form
868,705,430.29/1,198,804,977 = 472,204,828.95/x - Step 3: Cross multiply
868,705,430.29x = 1,198,804,977 × 472,204,828.95 - Step 4: Simplify right side
868,705,430.29x = 566,081,499,108,693,696 - Step 5: Solve for x
x = 566,081,499,108,693,696/868,705,430.29 - Step 6: Final answer
x = 651,638,034.45
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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.