Finding the Fourth Proportional to 142,543,846.99, 196,710,510.45 and 77,353,750.99
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Solution
The fourth proportional to 142,543,846.99, 196,710,510.45 and 77,353,750.99 is: 106,748,177.24
Step by Step Solution
- Step 1: Write the proportion equation
142,543,846.99 : 196,710,510.45 = 77,353,750.99 : x - Step 2: Convert to fraction form
142,543,846.99/196,710,510.45 = 77,353,750.99/x - Step 3: Cross multiply
142,543,846.99x = 196,710,510.45 × 77,353,750.99 - Step 4: Simplify right side
142,543,846.99x = 15,216,295,842,465,090 - Step 5: Solve for x
x = 15,216,295,842,465,090/142,543,846.99 - Step 6: Final answer
x = 106,748,177.24
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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.