Finding the Fourth Proportional to 291,923,125.40, 402,854,070.02 and 159,764,044.60
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Solution
The fourth proportional to 291,923,125.40, 402,854,070.02 and 159,764,044.60 is: 220,474,467.45
Step by Step Solution
- Step 1: Write the proportion equation
291,923,125.40 : 402,854,070.02 = 159,764,044.60 : x - Step 2: Convert to fraction form
291,923,125.40/402,854,070.02 = 159,764,044.60/x - Step 3: Cross multiply
291,923,125.40x = 402,854,070.02 × 159,764,044.60 - Step 4: Simplify right side
291,923,125.40x = 64,361,595,609,966,800 - Step 5: Solve for x
x = 64,361,595,609,966,800/291,923,125.40 - Step 6: Final answer
x = 220,474,467.45
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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.