Finding the Fourth Proportional to 288,457,424.10, 432,686,136.15 and 83,992,169.70
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Solution
The fourth proportional to 288,457,424.10, 432,686,136.15 and 83,992,169.70 is: 125,988,254.55
Step by Step Solution
- Step 1: Write the proportion equation
288,457,424.10 : 432,686,136.15 = 83,992,169.70 : x - Step 2: Convert to fraction form
288,457,424.10/432,686,136.15 = 83,992,169.70/x - Step 3: Cross multiply
288,457,424.10x = 432,686,136.15 × 83,992,169.70 - Step 4: Simplify right side
288,457,424.10x = 36,342,247,374,348,104 - Step 5: Solve for x
x = 36,342,247,374,348,104/288,457,424.10 - Step 6: Final answer
x = 125,988,254.55
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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.