Finding the Fourth Proportional to 1,129,113,653.97, 1,693,088,946.72 and 506,795,387.99
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Solution
The fourth proportional to 1,129,113,653.97, 1,693,088,946.72 and 506,795,387.99 is: 759,932,064.08
Step by Step Solution
- Step 1: Write the proportion equation
1,129,113,653.97 : 1,693,088,946.72 = 506,795,387.99 : x - Step 2: Convert to fraction form
1,129,113,653.97/1,693,088,946.72 = 506,795,387.99/x - Step 3: Cross multiply
1,129,113,653.97x = 1,693,088,946.72 × 506,795,387.99 - Step 4: Simplify right side
1,129,113,653.97x = 858,049,669,646,077,440 - Step 5: Solve for x
x = 858,049,669,646,077,440/1,129,113,653.97 - Step 6: Final answer
x = 759,932,064.08
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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.