Finding the Fourth Proportional to 809,487,855.73, 1,117,096,805.99 and 438,209,887.11
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Solution
The fourth proportional to 809,487,855.73, 1,117,096,805.99 and 438,209,887.11 is: 604,731,574.14
Step by Step Solution
- Step 1: Write the proportion equation
809,487,855.73 : 1,117,096,805.99 = 438,209,887.11 : x - Step 2: Convert to fraction form
809,487,855.73/1,117,096,805.99 = 438,209,887.11/x - Step 3: Cross multiply
809,487,855.73x = 1,117,096,805.99 × 438,209,887.11 - Step 4: Simplify right side
809,487,855.73x = 489,522,865,240,759,488 - Step 5: Solve for x
x = 489,522,865,240,759,488/809,487,855.73 - Step 6: Final answer
x = 604,731,574.14
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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.