Finding the Fourth Proportional to 492,276,819.98, 679,551,186.76 and 306,729,509.24
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Solution
The fourth proportional to 492,276,819.98, 679,551,186.76 and 306,729,509.24 is: 423,417,056.34
Step by Step Solution
- Step 1: Write the proportion equation
492,276,819.98 : 679,551,186.76 = 306,729,509.24 : x - Step 2: Convert to fraction form
492,276,819.98/679,551,186.76 = 306,729,509.24/x - Step 3: Cross multiply
492,276,819.98x = 679,551,186.76 × 306,729,509.24 - Step 4: Simplify right side
492,276,819.98x = 208,438,402,018,354,400 - Step 5: Solve for x
x = 208,438,402,018,354,400/492,276,819.98 - Step 6: Final answer
x = 423,417,056.34
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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.