Finding the Fourth Proportional to 1,549,787,943.18, 2,138,615,200.50 and 880,640,117.42
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Solution
The fourth proportional to 1,549,787,943.18, 2,138,615,200.50 and 880,640,117.42 is: 1,215,230,993.09
Step by Step Solution
- Step 1: Write the proportion equation
1,549,787,943.18 : 2,138,615,200.50 = 880,640,117.42 : x - Step 2: Convert to fraction form
1,549,787,943.18/2,138,615,200.50 = 880,640,117.42/x - Step 3: Cross multiply
1,549,787,943.18x = 2,138,615,200.50 × 880,640,117.42 - Step 4: Simplify right side
1,549,787,943.18x = 1,883,350,341,270,477,312 - Step 5: Solve for x
x = 1,883,350,341,270,477,312/1,549,787,943.18 - Step 6: Final answer
x = 1,215,230,993.09
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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.