Finding the Fourth Proportional to 1,871,926,336.80, 2,807,889,505.20 and 1,327,730,752.80
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Solution
The fourth proportional to 1,871,926,336.80, 2,807,889,505.20 and 1,327,730,752.80 is: 1,991,596,129.20
Step by Step Solution
- Step 1: Write the proportion equation
1,871,926,336.80 : 2,807,889,505.20 = 1,327,730,752.80 : x - Step 2: Convert to fraction form
1,871,926,336.80/2,807,889,505.20 = 1,327,730,752.80/x - Step 3: Cross multiply
1,871,926,336.80x = 2,807,889,505.20 × 1,327,730,752.80 - Step 4: Simplify right side
1,871,926,336.80x = 3,728,121,246,518,415,360 - Step 5: Solve for x
x = 3,728,121,246,518,415,360/1,871,926,336.80 - Step 6: Final answer
x = 1,991,596,129.20
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.