Finding the Fourth Proportional to 734,902,475.90, 1,102,353,713.85 and 678,782,306.30
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Solution
The fourth proportional to 734,902,475.90, 1,102,353,713.85 and 678,782,306.30 is: 1,018,173,459.45
Step by Step Solution
- Step 1: Write the proportion equation
734,902,475.90 : 1,102,353,713.85 = 678,782,306.30 : x - Step 2: Convert to fraction form
734,902,475.90/1,102,353,713.85 = 678,782,306.30/x - Step 3: Cross multiply
734,902,475.90x = 1,102,353,713.85 × 678,782,306.30 - Step 4: Simplify right side
734,902,475.90x = 748,258,196,245,473,152 - Step 5: Solve for x
x = 748,258,196,245,473,152/734,902,475.90 - Step 6: Final answer
x = 1,018,173,459.45
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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.