Finding the Fourth Proportional to 2,212,679,475.20, 3,319,019,212.80 and 1,110,683,417.60
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Solution
The fourth proportional to 2,212,679,475.20, 3,319,019,212.80 and 1,110,683,417.60 is: 1,666,025,126.40
Step by Step Solution
- Step 1: Write the proportion equation
2,212,679,475.20 : 3,319,019,212.80 = 1,110,683,417.60 : x - Step 2: Convert to fraction form
2,212,679,475.20/3,319,019,212.80 = 1,110,683,417.60/x - Step 3: Cross multiply
2,212,679,475.20x = 3,319,019,212.80 × 1,110,683,417.60 - Step 4: Simplify right side
2,212,679,475.20x = 3,686,379,602,352,765,440 - Step 5: Solve for x
x = 3,686,379,602,352,765,440/2,212,679,475.20 - Step 6: Final answer
x = 1,666,025,126.40
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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.