Finding the Fourth Proportional to 409,437,999.30, 614,156,998.95 and 133,088,679.30
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Solution
The fourth proportional to 409,437,999.30, 614,156,998.95 and 133,088,679.30 is: 199,633,018.95
Step by Step Solution
- Step 1: Write the proportion equation
409,437,999.30 : 614,156,998.95 = 133,088,679.30 : x - Step 2: Convert to fraction form
409,437,999.30/614,156,998.95 = 133,088,679.30/x - Step 3: Cross multiply
409,437,999.30x = 614,156,998.95 × 133,088,679.30 - Step 4: Simplify right side
409,437,999.30x = 81,737,343,873,106,992 - Step 5: Solve for x
x = 81,737,343,873,106,992/409,437,999.30 - Step 6: Final answer
x = 199,633,018.95
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1.5x scale
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.