Finding the Fourth Proportional to 621,712,476.47, 857,653,486.04 and 370,639,954.31
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Solution
The fourth proportional to 621,712,476.47, 857,653,486.04 and 370,639,954.31 is: 511,298,487.49
Step by Step Solution
- Step 1: Write the proportion equation
621,712,476.47 : 857,653,486.04 = 370,639,954.31 : x - Step 2: Convert to fraction form
621,712,476.47/857,653,486.04 = 370,639,954.31/x - Step 3: Cross multiply
621,712,476.47x = 857,653,486.04 × 370,639,954.31 - Step 4: Simplify right side
621,712,476.47x = 317,880,648,876,316,160 - Step 5: Solve for x
x = 317,880,648,876,316,160/621,712,476.47 - Step 6: Final answer
x = 511,298,487.49
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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.