Finding the Fourth Proportional to 447,857,812.19, 618,046,649.76 and 249,631,876.14
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Solution
The fourth proportional to 447,857,812.19, 618,046,649.76 and 249,631,876.14 is: 344,493,588.20
Step by Step Solution
- Step 1: Write the proportion equation
447,857,812.19 : 618,046,649.76 = 249,631,876.14 : x - Step 2: Convert to fraction form
447,857,812.19/618,046,649.76 = 249,631,876.14/x - Step 3: Cross multiply
447,857,812.19x = 618,046,649.76 × 249,631,876.14 - Step 4: Simplify right side
447,857,812.19x = 154,284,144,721,630,272 - Step 5: Solve for x
x = 154,284,144,721,630,272/447,857,812.19 - Step 6: Final answer
x = 344,493,588.20
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.