Finding the Fourth Proportional to 1,861,720,272.78, 2,569,193,774.91 and 1,026,374,736.93
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Solution
The fourth proportional to 1,861,720,272.78, 2,569,193,774.91 and 1,026,374,736.93 is: 1,416,408,051.95
Step by Step Solution
- Step 1: Write the proportion equation
1,861,720,272.78 : 2,569,193,774.91 = 1,026,374,736.93 : x - Step 2: Convert to fraction form
1,861,720,272.78/2,569,193,774.91 = 1,026,374,736.93/x - Step 3: Cross multiply
1,861,720,272.78x = 2,569,193,774.91 × 1,026,374,736.93 - Step 4: Simplify right side
1,861,720,272.78x = 2,636,955,584,845,444,608 - Step 5: Solve for x
x = 2,636,955,584,845,444,608/1,861,720,272.78 - Step 6: Final answer
x = 1,416,408,051.95
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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.