Finding the Fourth Proportional to 210,349,831.80, 315,524,747.70 and 97,103,623.80
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Solution
The fourth proportional to 210,349,831.80, 315,524,747.70 and 97,103,623.80 is: 145,655,435.70
Step by Step Solution
- Step 1: Write the proportion equation
210,349,831.80 : 315,524,747.70 = 97,103,623.80 : x - Step 2: Convert to fraction form
210,349,831.80/315,524,747.70 = 97,103,623.80/x - Step 3: Cross multiply
210,349,831.80x = 315,524,747.70 × 97,103,623.80 - Step 4: Simplify right side
210,349,831.80x = 30,638,596,400,250,712 - Step 5: Solve for x
x = 30,638,596,400,250,712/210,349,831.80 - Step 6: Final answer
x = 145,655,435.70
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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.