Finding the Fourth Proportional to 3,557,547,963.93, 4,909,416,655.60 and 1,971,742,302.43
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Solution
The fourth proportional to 3,557,547,963.93, 4,909,416,655.60 and 1,971,742,302.43 is: 2,721,004,635.28
Step by Step Solution
- Step 1: Write the proportion equation
3,557,547,963.93 : 4,909,416,655.60 = 1,971,742,302.43 : x - Step 2: Convert to fraction form
3,557,547,963.93/4,909,416,655.60 = 1,971,742,302.43/x - Step 3: Cross multiply
3,557,547,963.93x = 4,909,416,655.60 × 1,971,742,302.43 - Step 4: Simplify right side
3,557,547,963.93x = 9,680,104,500,091,027,456 - Step 5: Solve for x
x = 9,680,104,500,091,027,456/3,557,547,963.93 - Step 6: Final answer
x = 2,721,004,635.28
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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.