Finding the Fourth Proportional to 307,778,646.12, 461,668,887.70 and 74,608,433.52
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Solution
The fourth proportional to 307,778,646.12, 461,668,887.70 and 74,608,433.52 is: 111,912,872.94
Step by Step Solution
- Step 1: Write the proportion equation
307,778,646.12 : 461,668,887.70 = 74,608,433.52 : x - Step 2: Convert to fraction form
307,778,646.12/461,668,887.70 = 74,608,433.52/x - Step 3: Cross multiply
307,778,646.12x = 461,668,887.70 × 74,608,433.52 - Step 4: Simplify right side
307,778,646.12x = 34,444,392,516,217,792 - Step 5: Solve for x
x = 34,444,392,516,217,792/307,778,646.12 - Step 6: Final answer
x = 111,912,872.94
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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.