Finding the Fourth Proportional to 2,319,777,815.70, 3,479,666,723.56 and 787,968,023.70
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Solution
The fourth proportional to 2,319,777,815.70, 3,479,666,723.56 and 787,968,023.70 is: 1,181,952,035.55
Step by Step Solution
- Step 1: Write the proportion equation
2,319,777,815.70 : 3,479,666,723.56 = 787,968,023.70 : x - Step 2: Convert to fraction form
2,319,777,815.70/3,479,666,723.56 = 787,968,023.70/x - Step 3: Cross multiply
2,319,777,815.70x = 3,479,666,723.56 × 787,968,023.70 - Step 4: Simplify right side
2,319,777,815.70x = 2,741,866,111,298,227,712 - Step 5: Solve for x
x = 2,741,866,111,298,227,712/2,319,777,815.70 - Step 6: Final answer
x = 1,181,952,035.55
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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.