Finding the Fourth Proportional to 1,225,283,063.44, 1,690,901,419.08 and 668,368,587.28
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Solution
The fourth proportional to 1,225,283,063.44, 1,690,901,419.08 and 668,368,587.28 is: 922,354,537.02
Step by Step Solution
- Step 1: Write the proportion equation
1,225,283,063.44 : 1,690,901,419.08 = 668,368,587.28 : x - Step 2: Convert to fraction form
1,225,283,063.44/1,690,901,419.08 = 668,368,587.28/x - Step 3: Cross multiply
1,225,283,063.44x = 1,690,901,419.08 × 668,368,587.28 - Step 4: Simplify right side
1,225,283,063.44x = 1,130,145,392,700,246,784 - Step 5: Solve for x
x = 1,130,145,392,700,246,784/1,225,283,063.44 - Step 6: Final answer
x = 922,354,537.02
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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.