Finding the Fourth Proportional to 6,931,831.99, 9,565,191.70 and 3,833,863.06
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Solution
The fourth proportional to 6,931,831.99, 9,565,191.70 and 3,833,863.06 is: 5,290,323.71
Step by Step Solution
- Step 1: Write the proportion equation
6,931,831.99 : 9,565,191.70 = 3,833,863.06 : x - Step 2: Convert to fraction form
6,931,831.99/9,565,191.70 = 3,833,863.06/x - Step 3: Cross multiply
6,931,831.99x = 9,565,191.70 × 3,833,863.06 - Step 4: Simplify right side
6,931,831.99x = 36,671,635,120,448.60 - Step 5: Solve for x
x = 36,671,635,120,448.60/6,931,831.99 - Step 6: Final answer
x = 5,290,323.71
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.