Finding the Fourth Proportional to 651,775,267.62, 899,466,916.16 and 354,434,900.08
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Solution
The fourth proportional to 651,775,267.62, 899,466,916.16 and 354,434,900.08 is: 489,129,432.17
Step by Step Solution
- Step 1: Write the proportion equation
651,775,267.62 : 899,466,916.16 = 354,434,900.08 : x - Step 2: Convert to fraction form
651,775,267.62/899,466,916.16 = 354,434,900.08/x - Step 3: Cross multiply
651,775,267.62x = 899,466,916.16 × 354,434,900.08 - Step 4: Simplify right side
651,775,267.62x = 318,802,466,554,435,328 - Step 5: Solve for x
x = 318,802,466,554,435,328/651,775,267.62 - Step 6: Final answer
x = 489,129,432.17
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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.