Finding the Fourth Proportional to 1,277,742,963.26, 1,763,286,465.04 and 691,032,099.26
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Solution
The fourth proportional to 1,277,742,963.26, 1,763,286,465.04 and 691,032,099.26 is: 953,624,932.85
Step by Step Solution
- Step 1: Write the proportion equation
1,277,742,963.26 : 1,763,286,465.04 = 691,032,099.26 : x - Step 2: Convert to fraction form
1,277,742,963.26/1,763,286,465.04 = 691,032,099.26/x - Step 3: Cross multiply
1,277,742,963.26x = 1,763,286,465.04 × 691,032,099.26 - Step 4: Simplify right side
1,277,742,963.26x = 1,218,487,547,533,335,808 - Step 5: Solve for x
x = 1,218,487,547,533,335,808/1,277,742,963.26 - Step 6: Final answer
x = 953,624,932.85
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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.