Finding the Fourth Proportional to 4,790,170,810.20, 7,185,256,215.30 and 2,719,092,307.80
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Solution
The fourth proportional to 4,790,170,810.20, 7,185,256,215.30 and 2,719,092,307.80 is: 4,078,638,461.70
Step by Step Solution
- Step 1: Write the proportion equation
4,790,170,810.20 : 7,185,256,215.30 = 2,719,092,307.80 : x - Step 2: Convert to fraction form
4,790,170,810.20/7,185,256,215.30 = 2,719,092,307.80/x - Step 3: Cross multiply
4,790,170,810.20x = 7,185,256,215.30 × 2,719,092,307.80 - Step 4: Simplify right side
4,790,170,810.20x = 19,537,374,904,594,370,560 - Step 5: Solve for x
x = 19,537,374,904,594,370,560/4,790,170,810.20 - Step 6: Final answer
x = 4,078,638,461.70
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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.