Finding the Fourth Proportional to 287,330,774.75, 396,516,453.99 and 155,171,758.55
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Solution
The fourth proportional to 287,330,774.75, 396,516,453.99 and 155,171,758.55 is: 214,137,018.61
Step by Step Solution
- Step 1: Write the proportion equation
287,330,774.75 : 396,516,453.99 = 155,171,758.55 : x - Step 2: Convert to fraction form
287,330,774.75/396,516,453.99 = 155,171,758.55/x - Step 3: Cross multiply
287,330,774.75x = 396,516,453.99 × 155,171,758.55 - Step 4: Simplify right side
287,330,774.75x = 61,528,155,457,655,880 - Step 5: Solve for x
x = 61,528,155,457,655,880/287,330,774.75 - Step 6: Final answer
x = 214,137,018.61
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.