Finding the Fourth Proportional to 1,318,475,750.22, 1,975,127,851.35 and 764,614,588.50
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Solution
The fourth proportional to 1,318,475,750.22, 1,975,127,851.35 and 764,614,588.50 is: 1,145,422,332.60
Step by Step Solution
- Step 1: Write the proportion equation
1,318,475,750.22 : 1,975,127,851.35 = 764,614,588.50 : x - Step 2: Convert to fraction form
1,318,475,750.22/1,975,127,851.35 = 764,614,588.50/x - Step 3: Cross multiply
1,318,475,750.22x = 1,975,127,851.35 × 764,614,588.50 - Step 4: Simplify right side
1,318,475,750.22x = 1,510,211,569,294,869,248 - Step 5: Solve for x
x = 1,510,211,569,294,869,248/1,318,475,750.22 - Step 6: Final answer
x = 1,145,422,332.60
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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.