Finding the Fourth Proportional to 18,892,464,400.81, 28,342,676,602.99 and 6,128,541,931.08
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Solution
The fourth proportional to 18,892,464,400.81, 28,342,676,602.99 and 6,128,541,931.08 is: 9,194,103,972.65
Step by Step Solution
- Step 1: Write the proportion equation
18,892,464,400.81 : 28,342,676,602.99 = 6,128,541,931.08 : x - Step 2: Convert to fraction form
18,892,464,400.81/28,342,676,602.99 = 6,128,541,931.08/x - Step 3: Cross multiply
18,892,464,400.81x = 28,342,676,602.99 × 6,128,541,931.08 - Step 4: Simplify right side
18,892,464,400.81x = 173,699,282,000,525,164,544 - Step 5: Solve for x
x = 173,699,282,000,525,164,544/18,892,464,400.81 - Step 6: Final answer
x = 9,194,103,972.65
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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.