Finding the Fourth Proportional to 249,253,420.45, 373,545,930.01 and 193,987,988.15
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Solution
The fourth proportional to 249,253,420.45, 373,545,930.01 and 193,987,988.15 is: 290,721,881.82
Step by Step Solution
- Step 1: Write the proportion equation
249,253,420.45 : 373,545,930.01 = 193,987,988.15 : x - Step 2: Convert to fraction form
249,253,420.45/373,545,930.01 = 193,987,988.15/x - Step 3: Cross multiply
249,253,420.45x = 373,545,930.01 × 193,987,988.15 - Step 4: Simplify right side
249,253,420.45x = 72,463,423,444,260,608 - Step 5: Solve for x
x = 72,463,423,444,260,608/249,253,420.45 - Step 6: Final answer
x = 290,721,881.82
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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.