Finding the Fourth Proportional to 19,960,423.68, 29,927,762.76 and 7,831,113.03
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Solution
The fourth proportional to 19,960,423.68, 29,927,762.76 and 7,831,113.03 is: 11,741,619.15
Step by Step Solution
- Step 1: Write the proportion equation
19,960,423.68 : 29,927,762.76 = 7,831,113.03 : x - Step 2: Convert to fraction form
19,960,423.68/29,927,762.76 = 7,831,113.03/x - Step 3: Cross multiply
19,960,423.68x = 29,927,762.76 × 7,831,113.03 - Step 4: Simplify right side
19,960,423.68x = 234,367,692,908,584.78 - Step 5: Solve for x
x = 234,367,692,908,584.78/19,960,423.68 - Step 6: Final answer
x = 11,741,619.15
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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.