Finding the Fourth Proportional to 1,971,835,776.12, 2,721,218,401.26 and 1,091,769,557.88
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Solution
The fourth proportional to 1,971,835,776.12, 2,721,218,401.26 and 1,091,769,557.88 is: 1,506,689,069.56
Step by Step Solution
- Step 1: Write the proportion equation
1,971,835,776.12 : 2,721,218,401.26 = 1,091,769,557.88 : x - Step 2: Convert to fraction form
1,971,835,776.12/2,721,218,401.26 = 1,091,769,557.88/x - Step 3: Cross multiply
1,971,835,776.12x = 2,721,218,401.26 × 1,091,769,557.88 - Step 4: Simplify right side
1,971,835,776.12x = 2,970,943,410,838,551,040 - Step 5: Solve for x
x = 2,970,943,410,838,551,040/1,971,835,776.12 - Step 6: Final answer
x = 1,506,689,069.56
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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.