Finding the Fourth Proportional to 840,465,719.49, 1,262,611,766.79 and 608,013,426.09
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Solution
The fourth proportional to 840,465,719.49, 1,262,611,766.79 and 608,013,426.09 is: 913,404,185.73
Step by Step Solution
- Step 1: Write the proportion equation
840,465,719.49 : 1,262,611,766.79 = 608,013,426.09 : x - Step 2: Convert to fraction form
840,465,719.49/1,262,611,766.79 = 608,013,426.09/x - Step 3: Cross multiply
840,465,719.49x = 1,262,611,766.79 × 608,013,426.09 - Step 4: Simplify right side
840,465,719.49x = 767,684,906,147,536,000 - Step 5: Solve for x
x = 767,684,906,147,536,000/840,465,719.49 - Step 6: Final answer
x = 913,404,185.73
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1.5x scale
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.