Finding the Fourth Proportional to 1,370,513,701,767.20, 1,891,354,265,983.30 and 753,238,299,449.15
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Solution
The fourth proportional to 1,370,513,701,767.20, 1,891,354,265,983.30 and 753,238,299,449.15 is: 1,039,493,781,877.67
Step by Step Solution
- Step 1: Write the proportion equation
1,370,513,701,767.20 : 1,891,354,265,983.30 = 753,238,299,449.15 : x - Step 2: Convert to fraction form
1,370,513,701,767.20/1,891,354,265,983.30 = 753,238,299,449.15/x - Step 3: Cross multiply
1,370,513,701,767.20x = 1,891,354,265,983.30 × 753,238,299,449.15 - Step 4: Simplify right side
1,370,513,701,767.20x = 1,424,640,470,965,156,319,330,304 - Step 5: Solve for x
x = 1,424,640,470,965,156,319,330,304/1,370,513,701,767.20 - Step 6: Final answer
x = 1,039,493,781,877.67
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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.