Finding the Fourth Proportional to 137,685,831.99, 206,543,878.38 and 45,536,003.79
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Solution
The fourth proportional to 137,685,831.99, 206,543,878.38 and 45,536,003.79 is: 68,309,009.67
Step by Step Solution
- Step 1: Write the proportion equation
137,685,831.99 : 206,543,878.38 = 45,536,003.79 : x - Step 2: Convert to fraction form
137,685,831.99/206,543,878.38 = 45,536,003.79/x - Step 3: Cross multiply
137,685,831.99x = 206,543,878.38 × 45,536,003.79 - Step 4: Simplify right side
137,685,831.99x = 9,405,182,828,712,978 - Step 5: Solve for x
x = 9,405,182,828,712,978/137,685,831.99 - Step 6: Final answer
x = 68,309,009.67
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.