Finding the Fourth Proportional to 429,837,905.57, 644,756,464.47 and 134,735,148.05
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Solution
The fourth proportional to 429,837,905.57, 644,756,464.47 and 134,735,148.05 is: 202,102,598.61
Step by Step Solution
- Step 1: Write the proportion equation
429,837,905.57 : 644,756,464.47 = 134,735,148.05 : x - Step 2: Convert to fraction form
429,837,905.57/644,756,464.47 = 134,735,148.05/x - Step 3: Cross multiply
429,837,905.57x = 644,756,464.47 × 134,735,148.05 - Step 4: Simplify right side
429,837,905.57x = 86,871,357,696,560,032 - Step 5: Solve for x
x = 86,871,357,696,560,032/429,837,905.57 - Step 6: Final answer
x = 202,102,598.61
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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.