Finding the Fourth Proportional to 5,130,597,438.13, 7,080,516,216.74 and 2,872,517,209.32
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Solution
The fourth proportional to 5,130,597,438.13, 7,080,516,216.74 and 2,872,517,209.32 is: 3,964,237,094.94
Step by Step Solution
- Step 1: Write the proportion equation
5,130,597,438.13 : 7,080,516,216.74 = 2,872,517,209.32 : x - Step 2: Convert to fraction form
5,130,597,438.13/7,080,516,216.74 = 2,872,517,209.32/x - Step 3: Cross multiply
5,130,597,438.13x = 7,080,516,216.74 × 2,872,517,209.32 - Step 4: Simplify right side
5,130,597,438.13x = 20,338,904,683,440,627,712 - Step 5: Solve for x
x = 20,338,904,683,440,627,712/5,130,597,438.13 - Step 6: Final answer
x = 3,964,237,094.94
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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.