Finding the Fourth Proportional to 85,840,304.02, 128,817,177.63 and 40,415,089.30
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Solution
The fourth proportional to 85,840,304.02, 128,817,177.63 and 40,415,089.30 is: 60,649,339.45
Step by Step Solution
- Step 1: Write the proportion equation
85,840,304.02 : 128,817,177.63 = 40,415,089.30 : x - Step 2: Convert to fraction form
85,840,304.02/128,817,177.63 = 40,415,089.30/x - Step 3: Cross multiply
85,840,304.02x = 128,817,177.63 × 40,415,089.30 - Step 4: Simplify right side
85,840,304.02x = 5,206,157,737,290,412 - Step 5: Solve for x
x = 5,206,157,737,290,412/85,840,304.02 - Step 6: Final answer
x = 60,649,339.45
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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.