Finding the Fourth Proportional to 354,584,053.98, 489,456,572.70 and 213,461,836.38
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Solution
The fourth proportional to 354,584,053.98, 489,456,572.70 and 213,461,836.38 is: 294,655,943.11
Step by Step Solution
- Step 1: Write the proportion equation
354,584,053.98 : 489,456,572.70 = 213,461,836.38 : x - Step 2: Convert to fraction form
354,584,053.98/489,456,572.70 = 213,461,836.38/x - Step 3: Cross multiply
354,584,053.98x = 489,456,572.70 × 213,461,836.38 - Step 4: Simplify right side
354,584,053.98x = 104,480,298,836,802,976 - Step 5: Solve for x
x = 104,480,298,836,802,976/354,584,053.98 - Step 6: Final answer
x = 294,655,943.11
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.