Finding the Fourth Proportional to 947,438,575.40, 1,307,377,491.85 and 524,043,123.96
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Solution
The fourth proportional to 947,438,575.40, 1,307,377,491.85 and 524,043,123.96 is: 723,130,979.48
Step by Step Solution
- Step 1: Write the proportion equation
947,438,575.40 : 1,307,377,491.85 = 524,043,123.96 : x - Step 2: Convert to fraction form
947,438,575.40/1,307,377,491.85 = 524,043,123.96/x - Step 3: Cross multiply
947,438,575.40x = 1,307,377,491.85 × 524,043,123.96 - Step 4: Simplify right side
947,438,575.40x = 685,122,185,029,595,008 - Step 5: Solve for x
x = 685,122,185,029,595,008/947,438,575.40 - Step 6: Final answer
x = 723,130,979.48
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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.