Finding the Fourth Proportional to 1,172,307,936,479.70, 1,617,824,191,718.60 and 651,485,306,613.70
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Solution
The fourth proportional to 1,172,307,936,479.70, 1,617,824,191,718.60 and 651,485,306,613.70 is: 899,071,529,579.38
Step by Step Solution
- Step 1: Write the proportion equation
1,172,307,936,479.70 : 1,617,824,191,718.60 = 651,485,306,613.70 : x - Step 2: Convert to fraction form
1,172,307,936,479.70/1,617,824,191,718.60 = 651,485,306,613.70/x - Step 3: Cross multiply
1,172,307,936,479.70x = 1,617,824,191,718.60 × 651,485,306,613.70 - Step 4: Simplify right side
1,172,307,936,479.70x = 1,053,988,689,588,853,432,909,824 - Step 5: Solve for x
x = 1,053,988,689,588,853,432,909,824/1,172,307,936,479.70 - Step 6: Final answer
x = 899,071,529,579.38
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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.