Finding the Fourth Proportional to 2,657,225,435.20, 3,986,971,893.60 and 1,276,329,140.80
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Solution
The fourth proportional to 2,657,225,435.20, 3,986,971,893.60 and 1,276,329,140.80 is: 1,915,038,274.11
Step by Step Solution
- Step 1: Write the proportion equation
2,657,225,435.20 : 3,986,971,893.60 = 1,276,329,140.80 : x - Step 2: Convert to fraction form
2,657,225,435.20/3,986,971,893.60 = 1,276,329,140.80/x - Step 3: Cross multiply
2,657,225,435.20x = 3,986,971,893.60 × 1,276,329,140.80 - Step 4: Simplify right side
2,657,225,435.20x = 5,088,688,411,352,237,056 - Step 5: Solve for x
x = 5,088,688,411,352,237,056/2,657,225,435.20 - Step 6: Final answer
x = 1,915,038,274.11
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.