Finding the Fourth Proportional to 412,497,602.58, 619,018,995.91 and 194,210,370.58
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Solution
The fourth proportional to 412,497,602.58, 619,018,995.91 and 194,210,370.58 is: 291,443,896.50
Step by Step Solution
- Step 1: Write the proportion equation
412,497,602.58 : 619,018,995.91 = 194,210,370.58 : x - Step 2: Convert to fraction form
412,497,602.58/619,018,995.91 = 194,210,370.58/x - Step 3: Cross multiply
412,497,602.58x = 619,018,995.91 × 194,210,370.58 - Step 4: Simplify right side
412,497,602.58x = 120,219,908,591,740,608 - Step 5: Solve for x
x = 120,219,908,591,740,608/412,497,602.58 - Step 6: Final answer
x = 291,443,896.50
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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.