Finding the Fourth Proportional to 31,931,278.84, 47,927,199.48 and 19,763,937.28
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Solution
The fourth proportional to 31,931,278.84, 47,927,199.48 and 19,763,937.28 is: 29,664,648.55
Step by Step Solution
- Step 1: Write the proportion equation
31,931,278.84 : 47,927,199.48 = 19,763,937.28 : x - Step 2: Convert to fraction form
31,931,278.84/47,927,199.48 = 19,763,937.28/x - Step 3: Cross multiply
31,931,278.84x = 47,927,199.48 × 19,763,937.28 - Step 4: Simplify right side
31,931,278.84x = 947,230,164,528,768.62 - Step 5: Solve for x
x = 947,230,164,528,768.62/31,931,278.84 - Step 6: Final answer
x = 29,664,648.55
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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.