Finding the Fourth Proportional to 288,386,252.48, 397,839,625.36 and 255,380,139.20
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Solution
The fourth proportional to 288,386,252.48, 397,839,625.36 and 255,380,139.20 is: 352,306,457.16
Step by Step Solution
- Step 1: Write the proportion equation
288,386,252.48 : 397,839,625.36 = 255,380,139.20 : x - Step 2: Convert to fraction form
288,386,252.48/397,839,625.36 = 255,380,139.20/x - Step 3: Cross multiply
288,386,252.48x = 397,839,625.36 × 255,380,139.20 - Step 4: Simplify right side
288,386,252.48x = 101,600,338,903,712,656 - Step 5: Solve for x
x = 101,600,338,903,712,656/288,386,252.48 - Step 6: Final answer
x = 352,306,457.16
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.