Finding the Fourth Proportional to 3,849,721,650.63, 5,312,478,421.08 and 2,178,934,919.55
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Solution
The fourth proportional to 3,849,721,650.63, 5,312,478,421.08 and 2,178,934,919.55 is: 3,006,852,388.71
Step by Step Solution
- Step 1: Write the proportion equation
3,849,721,650.63 : 5,312,478,421.08 = 2,178,934,919.55 : x - Step 2: Convert to fraction form
3,849,721,650.63/5,312,478,421.08 = 2,178,934,919.55/x - Step 3: Cross multiply
3,849,721,650.63x = 5,312,478,421.08 × 2,178,934,919.55 - Step 4: Simplify right side
3,849,721,650.63x = 11,575,544,741,047,062,528 - Step 5: Solve for x
x = 11,575,544,741,047,062,528/3,849,721,650.63 - Step 6: Final answer
x = 3,006,852,388.71
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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.