Finding the Fourth Proportional to 1,276,812,493.98, 1,915,299,654.52 and 539,745,030.06
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Solution
The fourth proportional to 1,276,812,493.98, 1,915,299,654.52 and 539,745,030.06 is: 809,651,749.55
Step by Step Solution
- Step 1: Write the proportion equation
1,276,812,493.98 : 1,915,299,654.52 = 539,745,030.06 : x - Step 2: Convert to fraction form
1,276,812,493.98/1,915,299,654.52 = 539,745,030.06/x - Step 3: Cross multiply
1,276,812,493.98x = 1,915,299,654.52 × 539,745,030.06 - Step 4: Simplify right side
1,276,812,493.98x = 1,033,773,469,602,804,864 - Step 5: Solve for x
x = 1,033,773,469,602,804,864/1,276,812,493.98 - Step 6: Final answer
x = 809,651,749.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.