Finding the Fourth Proportional to 19,564,220.76, 26,999,467.86 and 10,862,393.80
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Solution
The fourth proportional to 19,564,220.76, 26,999,467.86 and 10,862,393.80 is: 14,990,571.61
Step by Step Solution
- Step 1: Write the proportion equation
19,564,220.76 : 26,999,467.86 = 10,862,393.80 : x - Step 2: Convert to fraction form
19,564,220.76/26,999,467.86 = 10,862,393.80/x - Step 3: Cross multiply
19,564,220.76x = 26,999,467.86 × 10,862,393.80 - Step 4: Simplify right side
19,564,220.76x = 293,278,852,285,763.31 - Step 5: Solve for x
x = 293,278,852,285,763.31/19,564,220.76 - Step 6: Final answer
x = 14,990,571.61
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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.