Finding the Fourth Proportional to 734,852,283.40, 1,102,278,425.10 and 678,732,113.80
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Solution
The fourth proportional to 734,852,283.40, 1,102,278,425.10 and 678,732,113.80 is: 1,018,098,170.70
Step by Step Solution
- Step 1: Write the proportion equation
734,852,283.40 : 1,102,278,425.10 = 678,732,113.80 : x - Step 2: Convert to fraction form
734,852,283.40/1,102,278,425.10 = 678,732,113.80/x - Step 3: Cross multiply
734,852,283.40x = 1,102,278,425.10 × 678,732,113.80 - Step 4: Simplify right side
734,852,283.40x = 748,151,765,464,257,920 - Step 5: Solve for x
x = 748,151,765,464,257,920/734,852,283.40 - Step 6: Final answer
x = 1,018,098,170.70
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Double scale
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Similar ratio
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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.