Finding the Fourth Proportional to 1,209,317,460.66, 1,668,751,702.41 and 673,428,631.62
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Solution
The fourth proportional to 1,209,317,460.66, 1,668,751,702.41 and 673,428,631.62 is: 929,272,264.75
Step by Step Solution
- Step 1: Write the proportion equation
1,209,317,460.66 : 1,668,751,702.41 = 673,428,631.62 : x - Step 2: Convert to fraction form
1,209,317,460.66/1,668,751,702.41 = 673,428,631.62/x - Step 3: Cross multiply
1,209,317,460.66x = 1,668,751,702.41 × 673,428,631.62 - Step 4: Simplify right side
1,209,317,460.66x = 1,123,785,175,467,511,808 - Step 5: Solve for x
x = 1,123,785,175,467,511,808/1,209,317,460.66 - Step 6: Final answer
x = 929,272,264.75
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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.