Finding the Fourth Proportional to 806,813,949.42, 1,113,917,328 and 658,488,877.05
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Solution
The fourth proportional to 806,813,949.42, 1,113,917,328 and 658,488,877.05 is: 909,134,219.81
Step by Step Solution
- Step 1: Write the proportion equation
806,813,949.42 : 1,113,917,328 = 658,488,877.05 : x - Step 2: Convert to fraction form
806,813,949.42/1,113,917,328 = 658,488,877.05/x - Step 3: Cross multiply
806,813,949.42x = 1,113,917,328 × 658,488,877.05 - Step 4: Simplify right side
806,813,949.42x = 733,502,170,441,256,448 - Step 5: Solve for x
x = 733,502,170,441,256,448/806,813,949.42 - Step 6: Final answer
x = 909,134,219.81
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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.