Finding the Fourth Proportional to 623,752,901.98, 860,785,807.17 and 345,299,075.62
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Solution
The fourth proportional to 623,752,901.98, 860,785,807.17 and 345,299,075.62 is: 476,516,490.07
Step by Step Solution
- Step 1: Write the proportion equation
623,752,901.98 : 860,785,807.17 = 345,299,075.62 : x - Step 2: Convert to fraction form
623,752,901.98/860,785,807.17 = 345,299,075.62/x - Step 3: Cross multiply
623,752,901.98x = 860,785,807.17 × 345,299,075.62 - Step 4: Simplify right side
623,752,901.98x = 297,228,543,521,759,488 - Step 5: Solve for x
x = 297,228,543,521,759,488/623,752,901.98 - Step 6: Final answer
x = 476,516,490.07
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1.5x scale
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.