Finding the Fourth Proportional to 112,334,831.80, 168,502,247.70 and 99,580,247.80
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Solution
The fourth proportional to 112,334,831.80, 168,502,247.70 and 99,580,247.80 is: 149,370,371.70
Step by Step Solution
- Step 1: Write the proportion equation
112,334,831.80 : 168,502,247.70 = 99,580,247.80 : x - Step 2: Convert to fraction form
112,334,831.80/168,502,247.70 = 99,580,247.80/x - Step 3: Cross multiply
112,334,831.80x = 168,502,247.70 × 99,580,247.80 - Step 4: Simplify right side
112,334,831.80x = 16,779,495,580,822,978 - Step 5: Solve for x
x = 16,779,495,580,822,978/112,334,831.80 - Step 6: Final answer
x = 149,370,371.70
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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.