Finding the Fourth Proportional to 81,738,272,983.20, 122,607,409,474.80 and 59,698,351,831.20
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Solution
The fourth proportional to 81,738,272,983.20, 122,607,409,474.80 and 59,698,351,831.20 is: 89,547,527,746.80
Step by Step Solution
- Step 1: Write the proportion equation
81,738,272,983.20 : 122,607,409,474.80 = 59,698,351,831.20 : x - Step 2: Convert to fraction form
81,738,272,983.20/122,607,409,474.80 = 59,698,351,831.20/x - Step 3: Cross multiply
81,738,272,983.20x = 122,607,409,474.80 × 59,698,351,831.20 - Step 4: Simplify right side
81,738,272,983.20x = 7,319,460,267,938,614,870,016 - Step 5: Solve for x
x = 7,319,460,267,938,614,870,016/81,738,272,983.20 - Step 6: Final answer
x = 89,547,527,746.80
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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.