Finding the Fourth Proportional to 314,929,628.20, 472,394,442.30 and 249,172,661.80
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Solution
The fourth proportional to 314,929,628.20, 472,394,442.30 and 249,172,661.80 is: 373,758,992.70
Step by Step Solution
- Step 1: Write the proportion equation
314,929,628.20 : 472,394,442.30 = 249,172,661.80 : x - Step 2: Convert to fraction form
314,929,628.20/472,394,442.30 = 249,172,661.80/x - Step 3: Cross multiply
314,929,628.20x = 472,394,442.30 × 249,172,661.80 - Step 4: Simplify right side
314,929,628.20x = 117,707,780,607,417,520 - Step 5: Solve for x
x = 117,707,780,607,417,520/314,929,628.20 - Step 6: Final answer
x = 373,758,992.70
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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.