Finding the Fourth Proportional to 48,532,630.80, 72,798,946.20 and 13,988,965.80
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Solution
The fourth proportional to 48,532,630.80, 72,798,946.20 and 13,988,965.80 is: 20,983,448.70
Step by Step Solution
- Step 1: Write the proportion equation
48,532,630.80 : 72,798,946.20 = 13,988,965.80 : x - Step 2: Convert to fraction form
48,532,630.80/72,798,946.20 = 13,988,965.80/x - Step 3: Cross multiply
48,532,630.80x = 72,798,946.20 × 13,988,965.80 - Step 4: Simplify right side
48,532,630.80x = 1,018,381,968,667,840 - Step 5: Solve for x
x = 1,018,381,968,667,840/48,532,630.80 - Step 6: Final answer
x = 20,983,448.70
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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.