Finding the Fourth Proportional to 3,078,791,475.53, 4,249,048,908.35 and 1,873,218,309.18
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Solution
The fourth proportional to 3,078,791,475.53, 4,249,048,908.35 and 1,873,218,309.18 is: 2,585,233,938.37
Step by Step Solution
- Step 1: Write the proportion equation
3,078,791,475.53 : 4,249,048,908.35 = 1,873,218,309.18 : x - Step 2: Convert to fraction form
3,078,791,475.53/4,249,048,908.35 = 1,873,218,309.18/x - Step 3: Cross multiply
3,078,791,475.53x = 4,249,048,908.35 × 1,873,218,309.18 - Step 4: Simplify right side
3,078,791,475.53x = 7,959,396,211,721,575,424 - Step 5: Solve for x
x = 7,959,396,211,721,575,424/3,078,791,475.53 - Step 6: Final answer
x = 2,585,233,938.37
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1.5x scale
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.