Finding the Fourth Proportional to 898,763,252.70, 1,348,144,879.05 and 639,430,542.30
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Solution
The fourth proportional to 898,763,252.70, 1,348,144,879.05 and 639,430,542.30 is: 959,145,813.45
Step by Step Solution
- Step 1: Write the proportion equation
898,763,252.70 : 1,348,144,879.05 = 639,430,542.30 : x - Step 2: Convert to fraction form
898,763,252.70/1,348,144,879.05 = 639,430,542.30/x - Step 3: Cross multiply
898,763,252.70x = 1,348,144,879.05 × 639,430,542.30 - Step 4: Simplify right side
898,763,252.70x = 862,045,011,109,909,376 - Step 5: Solve for x
x = 862,045,011,109,909,376/898,763,252.70 - Step 6: Final answer
x = 959,145,813.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.