Finding the Fourth Proportional to 651,775,278.93, 899,466,931.79 and 354,434,911.40
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Solution
The fourth proportional to 651,775,278.93, 899,466,931.79 and 354,434,911.40 is: 489,129,447.80
Step by Step Solution
- Step 1: Write the proportion equation
651,775,278.93 : 899,466,931.79 = 354,434,911.40 : x - Step 2: Convert to fraction form
651,775,278.93/899,466,931.79 = 354,434,911.40/x - Step 3: Cross multiply
651,775,278.93x = 899,466,931.79 × 354,434,911.40 - Step 4: Simplify right side
651,775,278.93x = 318,802,482,269,948,928 - Step 5: Solve for x
x = 318,802,482,269,948,928/651,775,278.93 - Step 6: Final answer
x = 489,129,447.80
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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.