Finding the Fourth Proportional to 1,702,429,391.09, 2,349,353,567.28 and 949,742,569.15
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Solution
The fourth proportional to 1,702,429,391.09, 2,349,353,567.28 and 949,742,569.15 is: 1,310,645,307.53
Step by Step Solution
- Step 1: Write the proportion equation
1,702,429,391.09 : 2,349,353,567.28 = 949,742,569.15 : x - Step 2: Convert to fraction form
1,702,429,391.09/2,349,353,567.28 = 949,742,569.15/x - Step 3: Cross multiply
1,702,429,391.09x = 2,349,353,567.28 × 949,742,569.15 - Step 4: Simplify right side
1,702,429,391.09x = 2,231,281,092,836,492,800 - Step 5: Solve for x
x = 2,231,281,092,836,492,800/1,702,429,391.09 - Step 6: Final answer
x = 1,310,645,307.53
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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.