Finding the Fourth Proportional to 1,246,234,021.64, 1,719,843,970.14 and 681,705,984.40
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Solution
The fourth proportional to 1,246,234,021.64, 1,719,843,970.14 and 681,705,984.40 is: 940,776,697.09
Step by Step Solution
- Step 1: Write the proportion equation
1,246,234,021.64 : 1,719,843,970.14 = 681,705,984.40 : x - Step 2: Convert to fraction form
1,246,234,021.64/1,719,843,970.14 = 681,705,984.40/x - Step 3: Cross multiply
1,246,234,021.64x = 1,719,843,970.14 × 681,705,984.40 - Step 4: Simplify right side
1,246,234,021.64x = 1,172,427,926,674,393,344 - Step 5: Solve for x
x = 1,172,427,926,674,393,344/1,246,234,021.64 - Step 6: Final answer
x = 940,776,697.09
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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.