Finding the Fourth Proportional to 1,267,118,928.95, 1,748,627,888.42 and 702,643,577.09
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Solution
The fourth proportional to 1,267,118,928.95, 1,748,627,888.42 and 702,643,577.09 is: 969,650,224.97
Step by Step Solution
- Step 1: Write the proportion equation
1,267,118,928.95 : 1,748,627,888.42 = 702,643,577.09 : x - Step 2: Convert to fraction form
1,267,118,928.95/1,748,627,888.42 = 702,643,577.09/x - Step 3: Cross multiply
1,267,118,928.95x = 1,748,627,888.42 × 702,643,577.09 - Step 4: Simplify right side
1,267,118,928.95x = 1,228,662,154,515,248,896 - Step 5: Solve for x
x = 1,228,662,154,515,248,896/1,267,118,928.95 - Step 6: Final answer
x = 969,650,224.97
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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.