Finding the Fourth Proportional to 610,490,831.60, 916,112,907.20 and 282,905,284.79
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Solution
The fourth proportional to 610,490,831.60, 916,112,907.20 and 282,905,284.79 is: 424,532,473.70
Step by Step Solution
- Step 1: Write the proportion equation
610,490,831.60 : 916,112,907.20 = 282,905,284.79 : x - Step 2: Convert to fraction form
610,490,831.60/916,112,907.20 = 282,905,284.79/x - Step 3: Cross multiply
610,490,831.60x = 916,112,907.20 × 282,905,284.79 - Step 4: Simplify right side
610,490,831.60x = 259,173,182,905,215,776 - Step 5: Solve for x
x = 259,173,182,905,215,776/610,490,831.60 - Step 6: Final answer
x = 424,532,473.70
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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.