Finding the Fourth Proportional to 313,291,829.16, 432,248,440.50 and 187,798,236.36
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Solution
The fourth proportional to 313,291,829.16, 432,248,440.50 and 187,798,236.36 is: 259,105,049.16
Step by Step Solution
- Step 1: Write the proportion equation
313,291,829.16 : 432,248,440.50 = 187,798,236.36 : x - Step 2: Convert to fraction form
313,291,829.16/432,248,440.50 = 187,798,236.36/x - Step 3: Cross multiply
313,291,829.16x = 432,248,440.50 × 187,798,236.36 - Step 4: Simplify right side
313,291,829.16x = 81,175,494,795,260,400 - Step 5: Solve for x
x = 81,175,494,795,260,400/313,291,829.16 - Step 6: Final answer
x = 259,105,049.16
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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.