Finding the Fourth Proportional to 1,383,032,881.97, 1,908,591,088.07 and 747,953,360.05
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Solution
The fourth proportional to 1,383,032,881.97, 1,908,591,088.07 and 747,953,360.05 is: 1,032,178,725.39
Step by Step Solution
- Step 1: Write the proportion equation
1,383,032,881.97 : 1,908,591,088.07 = 747,953,360.05 : x - Step 2: Convert to fraction form
1,383,032,881.97/1,908,591,088.07 = 747,953,360.05/x - Step 3: Cross multiply
1,383,032,881.97x = 1,908,591,088.07 × 747,953,360.05 - Step 4: Simplify right side
1,383,032,881.97x = 1,427,537,117,283,441,920 - Step 5: Solve for x
x = 1,427,537,117,283,441,920/1,383,032,881.97 - Step 6: Final answer
x = 1,032,178,725.39
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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.