Finding the Fourth Proportional to 478,310,831.80, 717,466,247.70 and 155,194,703.80
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Solution
The fourth proportional to 478,310,831.80, 717,466,247.70 and 155,194,703.80 is: 232,792,055.70
Step by Step Solution
- Step 1: Write the proportion equation
478,310,831.80 : 717,466,247.70 = 155,194,703.80 : x - Step 2: Convert to fraction form
478,310,831.80/717,466,247.70 = 155,194,703.80/x - Step 3: Cross multiply
478,310,831.80x = 717,466,247.70 × 155,194,703.80 - Step 4: Simplify right side
478,310,831.80x = 111,346,961,798,298,944 - Step 5: Solve for x
x = 111,346,961,798,298,944/478,310,831.80 - Step 6: Final answer
x = 232,792,055.70
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Similar ratio
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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.