Finding the Fourth Proportional to 2,609,538,444.99, 3,914,675,295.93 and 838,315,219.05
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Solution
The fourth proportional to 2,609,538,444.99, 3,914,675,295.93 and 838,315,219.05 is: 1,257,590,929.35
Step by Step Solution
- Step 1: Write the proportion equation
2,609,538,444.99 : 3,914,675,295.93 = 838,315,219.05 : x - Step 2: Convert to fraction form
2,609,538,444.99/3,914,675,295.93 = 838,315,219.05/x - Step 3: Cross multiply
2,609,538,444.99x = 3,914,675,295.93 × 838,315,219.05 - Step 4: Simplify right side
2,609,538,444.99x = 3,281,731,878,217,181,184 - Step 5: Solve for x
x = 3,281,731,878,217,181,184/2,609,538,444.99 - Step 6: Final answer
x = 1,257,590,929.35
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1.5x scale
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.