Finding the Fourth Proportional to 708,635,504.80, 1,062,953,257.20 and 644,012,279.20
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Solution
The fourth proportional to 708,635,504.80, 1,062,953,257.20 and 644,012,279.20 is: 966,018,418.80
Step by Step Solution
- Step 1: Write the proportion equation
708,635,504.80 : 1,062,953,257.20 = 644,012,279.20 : x - Step 2: Convert to fraction form
708,635,504.80/1,062,953,257.20 = 644,012,279.20/x - Step 3: Cross multiply
708,635,504.80x = 1,062,953,257.20 × 644,012,279.20 - Step 4: Simplify right side
708,635,504.80x = 684,554,949,852,435,840 - Step 5: Solve for x
x = 684,554,949,852,435,840/708,635,504.80 - Step 6: Final answer
x = 966,018,418.80
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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.