Finding the Fourth Proportional to 310,285,922.90, 465,428,884.35 and 137,579,407.70
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Solution
The fourth proportional to 310,285,922.90, 465,428,884.35 and 137,579,407.70 is: 206,369,111.55
Step by Step Solution
- Step 1: Write the proportion equation
310,285,922.90 : 465,428,884.35 = 137,579,407.70 : x - Step 2: Convert to fraction form
310,285,922.90/465,428,884.35 = 137,579,407.70/x - Step 3: Cross multiply
310,285,922.90x = 465,428,884.35 × 137,579,407.70 - Step 4: Simplify right side
310,285,922.90x = 64,033,430,235,344,800 - Step 5: Solve for x
x = 64,033,430,235,344,800/310,285,922.90 - Step 6: Final answer
x = 206,369,111.55
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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.