Finding the Fourth Proportional to 893,883,725.10, 1,232,860,720.68 and 580,718,840.76
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Solution
The fourth proportional to 893,883,725.10, 1,232,860,720.68 and 580,718,840.76 is: 800,938,006.17
Step by Step Solution
- Step 1: Write the proportion equation
893,883,725.10 : 1,232,860,720.68 = 580,718,840.76 : x - Step 2: Convert to fraction form
893,883,725.10/1,232,860,720.68 = 580,718,840.76/x - Step 3: Cross multiply
893,883,725.10x = 1,232,860,720.68 × 580,718,840.76 - Step 4: Simplify right side
893,883,725.10x = 715,945,448,531,827,840 - Step 5: Solve for x
x = 715,945,448,531,827,840/893,883,725.10 - Step 6: Final answer
x = 800,938,006.17
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Double scale
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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.