Finding the Fourth Proportional to 74,156,964.90, 111,235,447.35 and 51,198,713.70
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Solution
The fourth proportional to 74,156,964.90, 111,235,447.35 and 51,198,713.70 is: 76,798,070.55
Step by Step Solution
- Step 1: Write the proportion equation
74,156,964.90 : 111,235,447.35 = 51,198,713.70 : x - Step 2: Convert to fraction form
74,156,964.90/111,235,447.35 = 51,198,713.70/x - Step 3: Cross multiply
74,156,964.90x = 111,235,447.35 × 51,198,713.70 - Step 4: Simplify right side
74,156,964.90x = 5,695,111,822,164,074 - Step 5: Solve for x
x = 5,695,111,822,164,074/74,156,964.90 - Step 6: Final answer
x = 76,798,070.55
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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.