Finding the Fourth Proportional to 1,685,597,681.84, 2,326,129,777.64 and 932,963,132.12
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Solution
The fourth proportional to 1,685,597,681.84, 2,326,129,777.64 and 932,963,132.12 is: 1,287,491,876.88
Step by Step Solution
- Step 1: Write the proportion equation
1,685,597,681.84 : 2,326,129,777.64 = 932,963,132.12 : x - Step 2: Convert to fraction form
1,685,597,681.84/2,326,129,777.64 = 932,963,132.12/x - Step 3: Cross multiply
1,685,597,681.84x = 2,326,129,777.64 × 932,963,132.12 - Step 4: Simplify right side
1,685,597,681.84x = 2,170,193,323,064,613,376 - Step 5: Solve for x
x = 2,170,193,323,064,613,376/1,685,597,681.84 - Step 6: Final answer
x = 1,287,491,876.88
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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.