Finding the Fourth Proportional to 372,102,275.04, 513,501,141.36 and 207,128,817.12
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Solution
The fourth proportional to 372,102,275.04, 513,501,141.36 and 207,128,817.12 is: 285,837,768.63
Step by Step Solution
- Step 1: Write the proportion equation
372,102,275.04 : 513,501,141.36 = 207,128,817.12 : x - Step 2: Convert to fraction form
372,102,275.04/513,501,141.36 = 207,128,817.12/x - Step 3: Cross multiply
372,102,275.04x = 513,501,141.36 × 207,128,817.12 - Step 4: Simplify right side
372,102,275.04x = 106,360,883,999,666,720 - Step 5: Solve for x
x = 106,360,883,999,666,720/372,102,275.04 - Step 6: Final answer
x = 285,837,768.63
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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.