Finding the Fourth Proportional to 2,889,316,832.90, 4,333,975,249.35 and 708,282,968.90
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Solution
The fourth proportional to 2,889,316,832.90, 4,333,975,249.35 and 708,282,968.90 is: 1,062,424,453.35
Step by Step Solution
- Step 1: Write the proportion equation
2,889,316,832.90 : 4,333,975,249.35 = 708,282,968.90 : x - Step 2: Convert to fraction form
2,889,316,832.90/4,333,975,249.35 = 708,282,968.90/x - Step 3: Cross multiply
2,889,316,832.90x = 4,333,975,249.35 × 708,282,968.90 - Step 4: Simplify right side
2,889,316,832.90x = 3,069,680,856,748,736,000 - Step 5: Solve for x
x = 3,069,680,856,748,736,000/2,889,316,832.90 - Step 6: Final answer
x = 1,062,424,453.35
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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.