Finding the Fourth Proportional to 782,773,141.95, 1,175,010,535.51 and 316,755,370.94
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Solution
The fourth proportional to 782,773,141.95, 1,175,010,535.51 and 316,755,370.94 is: 475,477,348.52
Step by Step Solution
- Step 1: Write the proportion equation
782,773,141.95 : 1,175,010,535.51 = 316,755,370.94 : x - Step 2: Convert to fraction form
782,773,141.95/1,175,010,535.51 = 316,755,370.94/x - Step 3: Cross multiply
782,773,141.95x = 1,175,010,535.51 × 316,755,370.94 - Step 4: Simplify right side
782,773,141.95x = 372,190,898,027,211,136 - Step 5: Solve for x
x = 372,190,898,027,211,136/782,773,141.95 - Step 6: Final answer
x = 475,477,348.52
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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.