Finding the Fourth Proportional to 1,566,215,421.46, 2,160,847,765.61 and 887,959,610.63
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Solution
The fourth proportional to 1,566,215,421.46, 2,160,847,765.61 and 887,959,610.63 is: 1,225,084,055.67
Step by Step Solution
- Step 1: Write the proportion equation
1,566,215,421.46 : 2,160,847,765.61 = 887,959,610.63 : x - Step 2: Convert to fraction form
1,566,215,421.46/2,160,847,765.61 = 887,959,610.63/x - Step 3: Cross multiply
1,566,215,421.46x = 2,160,847,765.61 × 887,959,610.63 - Step 4: Simplify right side
1,566,215,421.46x = 1,918,745,540,577,905,408 - Step 5: Solve for x
x = 1,918,745,540,577,905,408/1,566,215,421.46 - Step 6: Final answer
x = 1,225,084,055.67
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1.5x scale
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.