Finding the Fourth Proportional to 728,069,432.20, 1,092,104,148.30 and 268,337,537.80
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Solution
The fourth proportional to 728,069,432.20, 1,092,104,148.30 and 268,337,537.80 is: 402,506,306.70
Step by Step Solution
- Step 1: Write the proportion equation
728,069,432.20 : 1,092,104,148.30 = 268,337,537.80 : x - Step 2: Convert to fraction form
728,069,432.20/1,092,104,148.30 = 268,337,537.80/x - Step 3: Cross multiply
728,069,432.20x = 1,092,104,148.30 × 268,337,537.80 - Step 4: Simplify right side
728,069,432.20x = 293,052,538,175,988,032 - Step 5: Solve for x
x = 293,052,538,175,988,032/728,069,432.20 - Step 6: Final answer
x = 402,506,306.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.