Finding the Fourth Proportional to 266,171,491.61, 398,900,347.20 and 207,155,130.79
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Solution
The fourth proportional to 266,171,491.61, 398,900,347.20 and 207,155,130.79 is: 310,454,936.77
Step by Step Solution
- Step 1: Write the proportion equation
266,171,491.61 : 398,900,347.20 = 207,155,130.79 : x - Step 2: Convert to fraction form
266,171,491.61/398,900,347.20 = 207,155,130.79/x - Step 3: Cross multiply
266,171,491.61x = 398,900,347.20 × 207,155,130.79 - Step 4: Simplify right side
266,171,491.61x = 82,634,253,596,050,960 - Step 5: Solve for x
x = 82,634,253,596,050,960/266,171,491.61 - Step 6: Final answer
x = 310,454,936.77
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.